Summary: I like that it tells how many watts are being used by the attached devices. That helped me determine how much electricity my computer is using so I don't overload my computer's 300 watt power supply with accessories. It handled the few short outages flawlessly and put my computer into hibernation just like it was supposed to. It comes with a 3 year warranty and I bought another 3 years from Walmart for a total of 6 years warranty.
Summary: I have a power hungry computer and the battery lasts around 25-40 mins depending on whether I'm playing a game or cruising the internet at the time of the outtage. The AVR works great, and the whole unit is very very quiet while running. No loud and noisy fan like some other models out there. My only qualm is that it doesn't protect your equipment from idiots who pull out your power cords.
Summary: I set this up with NUT on ubuntu, using the usbhid-ups driver, and it works perfectly. I have all of my servers plugged in to the UPS portion, listening to broadcast alerts from the server that is hooked up via the usb, and it shuts all down in a clean manner when the battery gets low. Upsc shows more information than you could ever want, so it can be set up for any number of configurations and power-off methods. It also works with ubuntu Desktop just by plugging it in!!
Summary: During the last round of storms in Alabama a tree fell on my power line to the house breaking the ground only. Caused all kind of havac with the power in my house. Every light that was on blew, toaster, microwave and just about anything else I did not get unpluged in time. These units saved all my AV equipment as well as my pc's. The unit themselves smoked but everthing of importance attached to them survived.
Summary: Fired right up, a big 1200 VA of power. Only problem is it said it supported serial port to talk to the monitor software, and even included a serial cable. I was out of USB ports, and had a spare serial. Spent 30 min trying to get the serial to work. Would not connect to the monitor software. Called help line and they said serial not supported. So 1. Why did they include a serial cable? 2. Why doesn't the doc say "serial not supported"? Otherwise, great.
Summary: Battery had enough power were I could use it right away, was easy to install, software is easy to use and when the power failed the PC shut down automatically (I turned the circuit breaker off to see how will it would work).