The PowerRay is really tough to review. On one hand, it's really cool. Playing with a submarine in the ocean is awesome. And in the right circumstances you can get some good underwater photos, but unfortunately, it's inconsistency and steep learning curve make it hard to recommend to anyone that isn't a hardcore fisherman or dedicated underwater photographer. It would be super cool to get some sweet underwater photos of underwater fish or even friends who are diving and/or snorkeling, but it takes so much coordination and effort that, unless you literally live on the water and are in it all the time, it's tough to pay such a premium for limited functionality.
HOW IT WORKS
I'm a dedicated technophile, but I had an extremely difficult time getting the PowerRay up and running, the instructions are lacking in all of the important ways that makes the initial setup and use EXTREMELY frustrating (which I'll mention below). So I think it's a good idea to understand how it works (the knowledge I obtained after significant trial and error).
Traditional methods of wireless communication do not work underwater. So, you have to be tethered to the PowerRay in order to control it. (Which is ultimately a good thing, more on that in a moment). So in terms of the MUST HAVES, you have to have the PowerRay connected to a long cord, which connects to a Base Station, which is required. You also have a phone or tablet (you don't have to be connected to the internet). The controller isn't necessary, you can drive it with your phone via touch controls, but that is no way to drive it, it's too difficult. For ease of use, I think the controller is a necessity. So to operate the PowerRay, you connect the PowerRay via the long cable to the BaseStation, you turn the Base Station on separately, which acts like a Wi-Fi hub. You then connect your phone to the Base Station's Wi-Fi network, which is ultimately how the phone/tablet communicates with the PowerRay. When you turn the controller on, after turning the Base Station on, it automatically connects to the Base Station's Wi-Fi network and integrates into the app on your phone/tablet (but I found the controller's ability to connect to the BaseStation's Wi-Fi to be inconsistent at best.
This is just the basics on getting the PowerRay into the water for purpose of operating it. To use the "sonar" device to map the floor of the body of water and/or find fish, you simple plug the PowerSeeker Fishfinder (a little plastic ball) into the bottom of the PowerRay (it screws on after removing a cover) and to use it, you simple choose it on the app while you're driving. It then starts to scan the water.
DESIGN
I am super impressed with the design and what you get. This truly is a complete package. You can look at the product details to see everything you get, but the PowerRay comes with it's own rolling suitcase which is a gigantic plus. It gives you a good place to store it, and makes it convenient to take on a plane. I took it through TSA without a problem, I simply opened it up and laid it on the security belt and had no issues.
The PowerRay looks sleek, and is extremely well built. I found all of it to be well built and thought out. You really can't hurt yourself with the blades unless you shove your finger into the propellers. There's a danger, no doubt, but I was never concerned, you can grab the back of it to pull in and out of the water without fear of cutting your finger off. The controller is well built and thought out and so is the PowerSeeker and means to charge it. There's one charger than charges the BaseStation, PowerRay itself, and controller. NOTE: you have to charge the BaseStation and PowerRay, at first I thought the BaseStation powered the PowerRay, but that's NOT the case. You need to charge it all. Luckily there's only one charger.
INSTRUCTIONS AND EASE OF USE
If there's one big complaint I have, it's the instructions and ease of use. This is one of the most unintuitive devices I've ever used. The Quick Start manual is paltry and does a poor job of explaining how the device works, which helps you figure out how to set it up, and it's just not intuitive. I guess once you know how it works it makes sense, but until you do it can be frustrating.
You have to turn the Base Station on, then plug it into the PowerRay, turn the controller on, turn your phone on, select the BaseStation's Wi-Fi network, open the Vision Plus app, and hope that it connects. When you open the app, it goes to a screen that says "Start Diving." But you can't advance (well you can, but to a stock image of the cotnrols that does nothing) unless it connects to the BaseStation. The connection issues are compounded by Android. If Android connects to a Wi-Fi network without internet access (like the BaseStation's network) it will often disconnect. Unless you know, you have to select the option to stay connected to the network even though there's no internet. And even after successfully driving the PowerRay several times, on the 3rd or 4th time it simply wouldn't connect to my phone. The BaseStation was on, but I ultimately restarted my phone, disconnected from the BaseStation network and reconnected. Eventually it worked, but it was frustrating because I knew how it worked and successfully used it before. I simply cannot explain the inconsistency.
THe first time I used it, the controller simply would not connect to the BaseStation. On my second drive, it did finally connect, but I didn't do anything different.
What compounds the instructions issue is that there's no good FAQ or troubleshooting resources in the app, or in the online community. It's too new of a product to get reliable help on say, YouTube. I couldn't find any help to solve the controller connectivity issues. Luckily, it finally just worked. But with a product this expensive, unfortunately the bar is just so high, it needs to work reliably every time (at least more than most).
Again, once you understood how it works, it makes sense, but it's not intuitive and the instructions simply aren't helpful. if you decide to get this, make sure to spend plenty of time in advance of your first dive (maybe practicing in a pool if you have that option) so you understand it and aren't left confused and frustrated say, out on the ocean.
OPERATION
So assuming you get everything set up, it's exciting. You start diving and bam, you're off to the races. But when I was driving it in the Gulf of Mexico, I simply couldn't control it. I put it on the Slow setting, and because I couldn't see which way I was pointing (and the water was cloudy, so the camera was of no help) and ultimately couldn't control where I was going. On this particular "dive" I simply couldn't get any photos because I was driving blind. It seemed every time I tried to drive it the way I thought it was going, it seems like it started going off in the opposite direction. So unless you can see it, and see which way it's pointing, it's tough to drive (unless you were in really clear water and the camera was more helpful). And when the purpose is to dive up to 100 feet, you often won't have the ability to "see" the PowerRay and figure out where you were going.
I'm not sure if the current played a part, I think so, but I can't say for certain. It certainly felt like the current kept moving it which again, made it difficult to navigate.
PHOTOGRAPHY
The PowerRay has a fantastic camera. When I got to clear water, I was impressed with the quality. BUT, the issue is setting up your shot. To get a picture of say, the ocean floor (in shallow-er waters of course), you have to dive while driving forward and hit the shutter button. It takes some skill. What would have been easier if you could dive to a certain depth, and then control the camera separately. Trying to control the PowerRay while lining up your shot makes it difficult.
Again, though, I was in cloudy water, I'm sure in better circumstances, like being in clear-er water with beautiful reefs around, you could grab a great picture. Quality of the camera isn't the issue, lining up and framing your shot is.
POWERSEEKER
I used the PowerSeeker to map out the floor. It was cool, it gave us the depth. But it didn't find any fish. I don't think there were any around, so it's not the device's fault, but I could see where it could be a big boon to fisherman. I could see this device's best utility where yo drive it close to the surface (so you can see where you're driving from the boat or dock) and scan the water to see where the fish are.
VR GOGGLES
Put this in the category of "cool" but of mostly gimmicky. I used the VR Goggles for a first person view, but I found it even more difficult to figure out where I was driving. It's a fantastic viewing experience (and simple to change, you simply push a button on your phone and it switches to VR mode without any issues). I think it would best used when a friend connects their phone to the BaseStation and simply "watches" rather than trying to drive while in VR mode.
CONCLUSION
All-in-all, this is a cool device. But it's too difficult to recommend to anyone given it's price and steep learning curve. Plus, it's use really is limited. If you were traveling to a reef with clear water AND had access to a boat, I could see you getting some great photos, even great photos of your friends who might be diving or snorkeling in the same place. But I don't live near water, so those type of "events" where I could capture some great photos are just too few and far between to justify the cost. But if you're getting it for photography purposes, I would take a hard look at how you'll use it, and I would definitely make sure you understand how it works before taking it out on your first trip.