I have about 6 Cyberpower UPS of the 1500VA and 1350VA sizes. I use mostly the non-PFC version with the blue screen as it is cheaper than the white screened PFC version. I've never had any problems with any of them. I am very happy with them. If Cyberpower was to give these things the features of a Web Power Switch, I would be in heaven.
I did try one of their cheapest models once, to provide backup power for my router and modem. It was a 350VA model I think. No display on it. Cost about $40. The sockets were loose and it didn't keep my router and modem on during the very first power outage we had after installing it. Was a waste of money. I replaced it with another of the big ones and everything has been fine since then.