I just purchased it a few days ago, and it *seems* to work okay, with the APC PowerChute Personal Edition software.
What I'm paranoid about is that there may be no firmware updates or any software updates for this product, as there would be for their other products.
If it's a great UPS, I don't understand why APC wouldn't advertise it more by having at least the product info on their website. It's very possible that this is a rebadged UPS from someone else, since they don't have any 800VA products on their website.
Oh well, I registered this thing, and pray that it works well, and that I'll be able to obtain replacement batteries for it in a few years...