Its hard to fault this amp. The acoustic guitar sounds great, and the vocal channel also sounds great. If i had one criticism, it would be that there is no EQ on the Bluetooth connection - yes, i suppose you could use a cable and EQ unit, but the idea of Bluetooth is no cables!. Other than that its amazing value. It would easily do as a monitor at a gig (running the XLR Out from the back of the amp to the main mixer).