Total
Stability
Quality

The jury is still out

I've got two of these, and they work just fine with the instruments I'm hanging on them. I would not dare to put my more expensive guitars on these though. Right now, I have an ukulele, and a mandola hanging from them, and they're not heavy, so it's no problem. You can ofcourse hang an electric bass or so on this, but I would be a bit wary. I've seen better, and more stabile hangers, which I'd trust more for heavier instruments.