Five minutes and it rocks. Kind of weird, by the way, this one has no power switch, it just plugs in. But it works, however. The effects, not too many of them, but just the ones I need, sound on my opinion great. They have just the right warmness and depthness I have tried to find.
Distortions are very, very highly configurable, mostly because of the excellent two equalizers.
I don't even consider using the distortion from my Marshall anymore. Some minus, wah-wah. I wish there would be some parameter to control besides Cutoff Frequency. The box also lacks an input level adjust, sometimes I miss it when I play a guitar with humbucker-mics. It havent been failing yet, not once.