I wish I'd checked in at the start of this thread because I was about to respond to your initial post with just this observation! When one of those is on the ceiling it practically blends in.

I haven't seen since the start of this thread, but are you planning on getting a Cloud Key to manage the APs? It makes things a lot easier and you don't have to dedicate a computer to the task. You can just attach it to the same POE switch that'll power the APs.

I have Google WiFi now, but just because I wanted to upgrade to ac at a time when the Unifi AC products were still in the $250 range. Now they're so cheap!

For all of my clients with either drop ceilings or ethernet runs, I install Unifi. For the rest I tend to use Google Wifi because I'm familiar with it and I'm a fanatic as you all know. Both systems have worked well in every place I've installed them. Just last week I installed four Google Wifi units in a 5000+ sqft home and got good coverage everywhere.