Harley Benton Double Jammer

The operating logic of the Double Jammer is pretty hard to understand and the manual doesn’t help at all. To add insult to injury, you never know quite where you are when using it… and the two switches don’t tell you anything: too many functions on one switch and only two colours (for the looper) and three (for the drum/ tap tempo). You never know when the playback stops and when it doesn’t. It needs too many moves of one switch to get to the function. Synchronizing of the drum machine with the looper should be automatic… but it rarely is. I mean… the drum parts aren’t usable not even for having fun.
Basicly, the pedal is tricky to use, incomprehensible and the lack of slots and a screen makes it difficult to use.