I bought this because the Mark IV version has the best sound of the entire Blues Junior series. This is, of course, highly subjective, but as a blues, rockabilly, surf kind of guy I find the tone of this amp perfect for use with my two Gretsch guitars and my Epiphone Thin Body Century. The basic sound (no pedals) is full and has most pleasing tone. If one uses the amp alone, it would be enough tone for any situation I could imagine short of metal of course. The Celestion "A" speaker was a pleasant surprise too; and excellent and most complementary match to the amp. The Fat Switch is very cool for a boost in a blues solo. Reverb is ok but not surf enough for me with the small tank. Overall volume should be fine for small bar gigs.Amp is very pedal friendly. I employ 4 pedals: Overdrive, Reverb/Tremolo, Chorus, and Delay. Mostly home use (right now) - looking forward to jamming with this amp. My tone went from somewhat generically blah with my old amps to an inspiring tone that makes me want to keep playing.