Awesome
This is great for practicing guitar. You can even sing the bass line and most of the times the app recognizes the correct progression. I can easily make backtracks and connect the phone to my amp and play over it. I used to own a Digitech Trio that did about the same thing, maybe with better tones, but it was a 300 bucks pedal. Also, the app seems to be easier to use and easier to “learn “. The only thing, sometimes I need to restart my iPhone because No sounds can be heard, although the app appears to be running.