if you are worried about power loss, just getting a UPS will help a lot there.
I got a few for free once that all had the batteries almost gone. It was still more than enough to keep my computer up during a storm.
I also have a 5U APC 3000W with actually good batteries that I cant use until I can re-wire my housing for 30A
That said I would agree that regulation likely isn't as much a bottleneck, nevertheless, having taken apart "good" power supplies in comparison to "cheap" ones I would certainly trust the good ones more.
This looks like a good deal, I may consider purchasing it.