This is a practical and easy-to-use multi-effects unit. Used live twice and about 10 times in practice. I have no particular complaints. It was easy to get the sound I was aiming for, even with a JC120. Recently, I've needed a variety of sounds, so I've switched to a compact digital multi-effects unit as my main, and this unit's usage has decreased. I think this is sufficient for those who don't need a huge variety of sounds. The RK5 V2 is a multi-function effects unit equipped with delay, reverb, and boost functions. - Model Name: RK5 V2 - Brand: TECH 21 - Functions: Delay, Chorus, Reverb, Boost, Tuner, Fuzz, Comp - Connections: Effects Loop, Input, Output - Control Buttons: Tap/Speed, Delay, Chorus, Reverb/Tuner, DMG, Boost, Fuzz, Comp Thank you for viewing.