Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lots of features in a compact case! It's a great UPS.

I've always gone cheap and owned the power strip style UPSs that don't give you any information. This time, however, I opted for a bit more expensive with a lot more features. The information on the screen is great: Input voltage, output voltage, power usage (kW), battery capacity, estimated runtime, and some indicators for poor power situations. It's not annoying when the power goes out (you can mute the beeper), and capacity is pretty decent for a desktop computer (or two laptops and an LCD in my case).