I have one of these, saved my PC after recent brown outs which fried some other stuff in the apartment. The UPS itself died after a while, and replacement was hassle free. With 2 emails I had a shipping label to send back the defective unit and a replacement on the way.
I have 5 UPC's, IMHO it is cheap insurance. I have one on each of my 3 home theater (AKA TV) setups. One more for desktop computer, router, monitor etc., and the last one for Ooma Hub, Modem, and 2 cordless telephone systems. The reason they warranty $25,000 of connected equipment failure, is that is about as likely as the connected equipment getting struck directly by lightning.