I was pleasantly surprised by the tonally quality of this little test amp. The preamp allows for some tonal variation, and the tone knob acts like a mid tone cut or boost. This amp cleans up really well, and does not have that one size fits all distortion sound that a lot of these little amps have. Seems pretty sturdy, but only time will tell. My previous test amp has been dropped on slate and wood floor and always worked until the battery compartment no longer stayed shut. If you are looking something this Fender Mini Deluxe Electric Guitar Amp, I suggest to the best deal here.