Feature:
Nice that you can switch between adapter types ACA and whatever the other one is. I don't have any Line6 so two of the outputs won't be usefull unless I buy line6.. hmm. I plugged my distortion pedal into the SAG (which simulates dying bateries and is supposed to sound different) but I couldn't hear anything because our drummer wouldn't shut up. I do wish there was an on/off switch. As is you have to unplug it, hook it up to a power strip with an on/off, or just leave it running.

Quality:
Built like a tank

Value:
Pretty expensive, I haven't tried any others to know if you can get the same quality at a cheeper price. I'll be using this on my pedal board that'll be used in a studio so utter silence was important and I'm willing to pay for it.

Desirability:
Looks fine

Sound:
The sound - or lack there of - is amazing. I originally had just a few pedals that I hooked up using 9v DC adapters plugged into a power strip which added a little bit of noise. I added more pedals and decided to get a DC adapter that lets you plug in 5 pedals to the same wall wart plug, that added a TON of noise. I got the VooDoo and now it's silent. I can have as much gain and distortion as I want and the amp will sound like nothing's plugged into the input.

Ease of Use:
Plug it in.

Support:
Haven't needed it

Overall:
I like it, I plan on keeping it on my pedal board for a long time. If it breaks I'll look around and see what else is out there but will most likely stick with it.