Not a great experience with this system so far. Installation: Like most products, it's not as easy as it claims. The water line connection was a pain to fit in my line with little space to work. The drain saddle bracket broke because it can't be tightened to much and it doesn't give any indication that you are tightening to much. I wants to do a boot up program when you first turn it on, but in my case I had to keep turning it on and off to fix leaks. Function: It makes the water clean, you can tell. It's slow to dispense that water. It's pretty loud when it does it's thing under the sink. The TDS readout is whatever really. I'd rather have a readout for how much water your using through the day. I was going to return this thing during my installation, but once I got it working right, I just didn't want to bother with taking it out. I know they have the 800gpd version and that would probably be better if it dispenses water quicker. This one is pretty much put your glass under, turn it on, go walk away and do something else, and come back to a cup of water. I'm exaggerating, but it is slow though.

Well, when I saw that their instructions said it would be a 30 minute install, I was skeptical...and, indeed, to carefully do the install took almost 2 hours. Granted, a small part of that was taking apart the older canister based RO system; however, it was easily 90 minutes to just install the Waterdrop. That being said, the install went smoothly as their instructions were very straightforward and all items in the box were clearly marked, making things happen smoothly. Having read ahead in the instructions, I saw that the system does a 30 minute run through the RO faucet after a 5 minute start-up 'flush' prior to being useable so I had my bucket ready to catch the water and take it out to my desert landscaping so as not to waste all that water. I checked things out for several hours and all was working fine with no leaks at all and was pleased with ALL OF THE EXTRA ROOM I now had under my kitchen sink, not to mention that the filter changes, a PIA on the old system, will be easy-peasy, too! The water? After the initial start-up, I tested the water and discovered it was very close to the Waterdrop's score of a TDS of 25...this starting with tap water that was well over 450 and the taste was poor! My wife and I are quite happy with the results as the older RO system (4 different filters and a tank) was never that low. The flow out of the RO faucet is not too strong (e.g.: doesn't splash out) but more than needed to quickly fill a glass or cup. The only negative we could see was one we knew going in, having had an RO system before, is that the RO water tastes 'flat' unless you add a mineral cartridge back into the filtered water to give it more taste. After looking at the cost of adding the mineral carts into the mix, it just adds complexity and cost, and we are fine with the 'flat' flavor over the taste of the water straight out of the tap. Also, make sure that before you buy you have an active plug under the sink and not just a switched plug like the one used for a garbage disposal (I had to add an extension tap onto the plug-in for the dishwasher, which worked just fine for me). Hopefully, this system will provide us years of service and I look forward to the easier, frustration free, filter changes.

Initially this worked great. Replaced CB filter at 6 months when indicated and next 6 months great. Now indicated replacing CB and CF filter which I did but unit still shoes they need replacing.

I like this product, but it takes time to install if your countertop or your sink doesn’t have a hole ready to install. We hope this model is made more simple to install so everyone can do it. It took my hubby a little bit of time to figure out how to resemble it instead of drilling a hole over our granite countertop.

I am this is a great system, but I had to return it because it wouldn't fit under sink. Make sure you have enough room.