Aside from the manual, which needs a lot of improvement, this is a good machine with good sounds. One feature it has (which is not mentioned in the manual) is the ability to type in a tempo via the numbered pads. That is very useful for changing tempos rapidly on stage. The manual only lists two ways to change tempo - the dial and tap tempo function. Programming some functions such as changing the individual volumes of drums and cymbals can be very difficult to understand thanks to what I consider a poorly written manual. Where I have succeeded doing this seems to be by accident, and of course, it's difficult to remember what actually worked.