Suprior Drummer is a leviathan. The kit configuration possibilities are almost endless and then to step that further, each kit piece can be changed within the VST. With compatability for older EZX expansions for EZ drummer, this Virtual Instrument is something every producer should have. If you have Ez Drummer, Or EZ Drummer 2, I recommend that you upgrade to this ASAP.
If you go to a studio and they don't have Superior Drummer I would think twice about recording there. This is a must have. Record drum tracks at home at 3am. To words for you LOVE IT!