I've been using a looper for my solo live performances for over 10 years. Here's what "evolved" from my experiences: - I use it in about 60% of my show. - In a few songs I record a short intro, start the loop and play lead over it... usually, just one time through. - I mostly use it for a lead break mid song, only. - I rarely "jam out" on the loop. - I often use the loop for harmonica solos, too. - I sometimes, but rarely, use it for an outro. - The looper is a DigiTech Jam Man Stereo and works well... I'm on my second on in 11 years. It's a significant part of my show. I do sometimes feel that listeners think that I'm play to pre-recorded (like in a studio) tracks; so I mention that everything that they hear is being performed live in front them with the looper.