Not impressed
I don't know much about drums, but I do know that this flash isn't very good. The buttons worked well, but it's hard to really get a good song going since you have to move from instrument to instrument, which takes time and is easy to miss-click. Basically all this is good for is finding what sounds a drum makes. I've seen some good music simulators, but this isn't one of them. Perhaps you should make the drums sound with buttons, so that one could actually make a decent song.