1/ Their APs are so cool! Check out this web interface! I can manage an entire fleet of both of these, all from my home office!
2/ Aha, the APs run Linux and I can ssh to them and upload settings — even cooler!
3/ Er, you know what else runs Linux, has a pair of wired and wireless NICs, and can be managed remotely with plain text files and ssh — literally every SBC on the market for $20.
I run a mixture of UAC PROs and PoE SBCs as APs now. The latter because I’m cheap and I can manage them myself. The former because I’m cheap and refuse to retire something for which I paid $100+ a piece.
Ubiquiti provide some fantastic and well polished products. I thought I needed them, but all I really needed was commodity hardware and a shell script.