It is by far the best mini amp I have heard or played out of. It is what it is (a mini amp not quite 6 inches wide and not quite 5 inches tall) so it is not going to sound just like your favorite tube amp. It does sound very, very good for what it is. The non adjustable (except for on/off) echo effect sounds slightly reverb, slightly delay, and slightly slap-back all in one. The adjustable tremolo is great and using it does not effect the volume like on most amps. The gain is fine and offers a variety of distortion. The frequency response of the speakers is good and very good using the low notes on the A and E strings. It sounds unique and you find yourself making things up on it that you would not come up with otherwise. It actually is a functionally fun to play mini amp.