I have been meaning to add a post about the JamMan Solo and the added functionality you gain when connecting a 3 button footswitch.
I use the JamMan Solo more than any other pedal I have because it is so helpful for practicing and developing melodies and/or new chord progressions. It has been much easier to practice/record when attaching the footswitch.
What I like the most is being able to stop and clear the recorded loop easier.
Check out my quick video and let me know if you have any questions I can answer for you.