For work, we pretty much use Eaton as the support has pretty much been on point.
What spawned this thread was actually my rumblings and musings, as I'm still on stage 3 of 10 post Sandy @ Home PREP. Just hooked up our Synology to out Cyberpower UPS last night and it recognizes it like a charm. I have a couple of these littered throughout the house, Audio/Video DVRS, telephone, etc. $ for $, they're a bit cheaper than a APC Smart UPS equivalent, and the battery in the CP is something I can easily replace from Batteries Plus.