Just know going in - if your equipment gets fried, they won't pay you a dime. They will blame it on anything from faulty building wiring to bad grounding and deny your claim. Why don't they just print '$500,000,000,000 WARRANTY' on the box - if they don't intend to stand behind their product? I had one computer system that was wireless and it's only link to electricity was through an APC battery. Lightning struck and it died and started to smell burnt. I sent in the claim and the unit & got what looks like their standard protocol - sorry, no replacement. The system was only worth $200 which is far less than our company spends annually on batteries. I won't use APC again.