Ive tried the Boss Katana, and it packed in after ten minutes and had to be returned, I tried the original Fender Mustang, which was brilliant, but far too loud, I then tried the Fender LT25, which was very boxy. If you take the versatility of the Katana, the sound of the Mustang and the size of the LT25, you have the NUX Mighty 20 Mk2, an excellent practice amp, and definatly a keeper.