I've been using APC UPS devices for decades, periodically swapping out older ones for newer ones. I use their UPS devices for my computer systems as well as for my stereo and television.
Pros: Good Value, High Quality, High Confidence Level in 24/7 Uptime
[This review was collected as part of a promotion.] This is my 3rd APC battery back up. The product is durable, reliable and cost effective. Customer service is a pleasant experience. I recommend this company without reservation.
Pros: Ease of Management, Good Value, High Quality, Fast, Good Vendor Support
A replacement for my old one that lasted eight years!!!!
Pros: Energy Efficient, Easy to Perform Maintenance, Ease of Management, Good Value, High Quality, Fast, Good Vendor Support, High Confidence Level in 24/7 Uptime
This is a fine unit that does what it is supposed to. I am giving it 2 stars to get someone's attention in the industrial design department of the company that makes it. I had an older unit essentially the same as this 550 UPS. It had large white markings on the (black) unit indicating the different outlets, the meaning of the warning LEDs, and (in the back) the in/out jacks to protect phone/ethernet lines. The new unit has these markings in a fairly small size in gray(!) on black. These are only legible in bright light or with a flashlight, which makes very little sense for a unit that is typically stored under or behind a desk. I have attached photos of the old and new unit to illustrate my point. Someone should probably read Donald Norman's "The Design of Everyday Things."
Pros: Easy to Perform Maintenance, Good Value, High Confidence Level in 24/7 Uptime
This is a good solution for a small office deployment. Plenty of receptacles for a basic workstation. Not quite as bulky as units that will provide similar run time. Cord could be a bit longer.
Pros: Ease of Management, Good Value, High Confidence Level in 24/7 Uptime