Feature:
4 knobs and 2 switches to toggle to your heart's content. For those of us with active electronics this is a must as the Qtron is very sensitive to our electronics.

Quality:
Well, it is somewhat rigid, however I would want to drop it either. It's certainly not built like an MXR pedal which is what I would assign a 10.

Value:
I bought mine used for a fraction of the cost. It could/should be a bit cheaper...

Desirability:
Not the best filter on the market - but close. I like it and I don't anticipate selling it and shelving it.

Sound:
Sounds Very Funky! However it took a while to find the "Right Sound" as this pedal is very sensitive. Patience will be rewarded. At the moment it is the only effect that I am using. Keep in mind that no two envelope filters are created alike. For instance, the sound I get out of the QTron is worlds away from what I get out of my Mutron III+, another excellent effect.

Ease of Use:
...Again, patience. You're not going to take it out of the box, plug in, and sound immediately like Bootsy. Take your time.

Support:
Nope. Not yet at least.