The all-in-one guitar multi-effects unit, the Boss ME-50 is an incredible floor unit. It's like having an entire collection of Boss pedals: 10 EQ presets, 22 types of distortion, 11 of modulation, 11 delays, and 6 expression pedal effects like wah and ring mod...oh my!. The controls are intuitive for any Boss user, using knobs like the ones you'd find on typical Boss stompboxes.
This powerful unit is super clean and lightly used. It ships out the next day.