1. With this I can record multiple tracks on different channels? Like say record a riff on one channel, play it back, and then switch to another channel and have it play another recorded riff? Or am I wrong?

2. Is this worth getting for that price?

3. What is the stop/tempo cable input for?

Thanks. =)
1.Now I may be wrong with this, but I'm pretty sure that you play the riff it records the guitar and then just sends it over an over again to the amp, whatever channel you are on it will send the riff to that channel.

2.Probably, it depends on whether or not you have recording equipment.

3. I think that's for a foot switch to tap the tempo of the loop and turn it off and on.