I work in the IT industry with a company that heavily relies on equipment from Ubiquiti (AmpliFi's Parent Company/Commercial grade equipment) and it's a surprising joy to use. Their devices are extremely relied and priced phenomenally in the commercial sector, so I was overjoyed to see them getting into the home/consumer sector as well. This device was perfect for my needs seeing as my place had just okay wireless signal (signal strength or "bars") with another single unit wireless TP-Link router before but when I'd test the speeds or try to game on my Xbox in another room, the connection quality (connection speeds, ping drops, etc.) was very spotty and inconsistent, so I had to do something to get more reliable wireless service in my house.
The setup is super easy on these devices if you're comfortable with downloading and installing mobile apps on your phone (I work heavily with enterprise networking, so this setup was cake for me but my girlfriend who hates downloading and installing apps might not love the setup process as much). The instructions included in the box are quick and easy, though their 2 minute setup promise might be a little overzealous. Regardless, it's a smooth process and worked well. Their app is actually a pleasure to use and doesn't try to push a bunch of other "Family" or "Security" subscriptions on you, as I've come to notice is common in other home routers sold now. The two units are very understated and out of the way. It matches up perfectly with my Philips Hue home hub. The underlighting of the unit is cool looking for nerds but completely optional for people who don't want that attention (it allows you to time the lighting or turn it off, a nice and unexpected feature). The primary units touch screen is an interesting addition but I'd be a liar if I said it's not a bit unnecessary. Typically, if my home wireless is experiencing issues, I jump into their Amplifi app to use their super useful Diagnose function or I just restart the modem or router (which, thankfully, has not needed to be restarted for anything but firmware upgrades since I've purchased it). The touchscreen shows same information that you can obtain in the app but if you are one to lose your phone often, I could see it being more useful.
Most important of all, the thing just WORKS GREAT. The wireless signal is consistent and fast throughout the house. I work from home on this unit for a minimum 40 hours a week, then hop off my desktop and into video games, HD streaming, etc. for the rest of the night with numerous devices. There's Rokus, Amazon Echos, iPads, Macs, Surfaces, Xbox, etc. on the network and they all work flawless. I don't have to baby this thing, hop onto a nerdy IT adventure, or play around with the network configurations like I'm at work; it just runs solid. My girl's new laptop was experiencing constant drops with our old wireless router that I was contributing to her wireless NIC or drivers before but that issue vanished once the new Amplifi device was installed (I've seriously never seen anything like that).
My only super minor complaint is I wish the back of main router had 4 LAN ports like their other units do but I already had network switches around to absolve that issue. I imagine most average home users are mostly on laptops, iPads, phones, smart TVs, etc. now but for some houses that still keep a family desktop or two around, those extra LAN ports could be crucial. I do give them an extra star for having a LAN port on the primary and secondary device though because some of these mesh networking units are completely wireless now.
The overall on this unit: If the device meets your needs, BUY IT! Don't let the price of more expensive units seem to belittle this one and don't let the cheap stuff burn in a few months. This device is price right in the middle-tier of mesh networking units and I imagine it's perfect for most modern home networks.