This reviewer is a member of the Best Buy Tech Insider Network Program. This invitation-only program provides BestBuy.com reviewers with manufacturer-supplied products for the purpose of writing honest, unbiased and usage-based reviews. Outside of receiving products to test and review, Best Buy Tech Insider Network Reviewers are not compensated in any other way.
Was purchased with the intent of only using it for the new high-end HP desktop, networking gear and a 19" tube monitor but after all that was plugged in, found it was only using about 1/3 of the total capacity (750W max) and the status screen indicated that more could be added. Now two PC's, one monitor, networking gear, speakers, basically everything at my desk - that's a lot - is connected and it's still only around 1/2 the capacity.
Keep in mind the "up to 140 minutes" is the absolutely best case with very little connected to it. The estimate with my gear shows 14 minutes, still more than enough time to safely power-down if needed. The display on the unit has multiple modes and is extremely helpful. Once the monitoring software is installed, there is a wealth of information as well, including a Self-Test option.
Apparently it has a cooling fan, but rarely runs and very quiet when it does. Read reviews of other products which people said they were very loud so that was a factor in the decision process. The battery is very easy to access and would be user-replaceable with minimal effort. If the price seems a little steep, think of it as an investment in protecting your equipment and what it would cost to replace it. Factor in just how much you can connect to it and then the price tag is more justifiable. Very pleased with it.
What's great about it: Plug and go, handles more load than planned on, has Windows 7 software available, quiet, display has multiple options.
What's not so great: Getting the free monitoring software off the manufacturer site is a little more involved than it needs to be.