It loops, it saves your loops, it allows you to switch through the loops- all good so far, but there were three main issues I had with the unit that resulted in me returning it:
1. Some lack of internal shielding meant it added a hum to my setup when plugged in, even in bypass mode;
2. The volume knob is a global volume, not just for the loop, which is a design choice that I just can’t understand at all;
3. A recorded loop is played back at a higher volume than the dry guitar signal. This was the biggest issue for me: I intended to use the looper to set up sounds on pedals and in the Boss Katana, for which the other two issues were annoying, but not deal breakers. So I would record a loop, dial in a sound, then stop the loop and play. My guitar sound was noticeably quieter than the recorded loop, meaning both the volume and gain levels would be significantly off. As such, the looper is basically useless for my purposes.
If you want it to record some chords to solo over, then it’ll get the job done. For anything more, it’s not up to the job.