I've also used the smaller APC's domestically and the big ones for clients. On the domestic ones, I'm not too happy with the relatively short service life of the battery. I'm trying out units by CyberPower at the moment, and very happy with the amount of information available on the front panel and via the computer widget. For example, the front panel shows power used by attached devices, which is great for checking that one's bought the right-sized unit. The only downside of the CyberPower I've found so far is that the power button is VERY easily pressed, which switches the entire unit off instantly.