I've used APC back up power supplies in the past. Gotten away from it for awhile, mostly due to laziness. But then we had 3 power failures in one afternoon, so I realized it was time to get another back up supply. APC has always been great so I bought a BE600M1. No problems installing. Everything seemed straight forward. Now, however, after it being in for a couple of days, I do have a concern with it going into sleep mode in relatively short time. And this morning was a real issue as it went into sleep mode and when I tried to get it out, it immediately returned to sleep mode........within 5 seconds. \
it's a great product and I like the piece of mind that it gives me. But I'm now thinking of uninstalling the software and disconnecting the usb cable. As long as it continues to give power when the power goes out,it'll do it';s job. I just need enough time to walk into the room and turn the computer off manually. That's the reason for the 4 stars instead of 5. The software is too complicated and not user friendly.