I would agree with Jeff. I had been playing with everything from quantizing pasted prercorded samples to Fuityloops to LeafDrums before actually shopping for real software. I listened to a lot of samples that other more experienced users had created, and Drumkit From Hell Superior was clearly the best. It had a learning curve to it...maybe because I had little real experience with softsynths...but I got the hang of it rapidly. It has some compatibility issues depending on your recording software. For example, it is somewhat cumbersome with Sonar if you use the VST Adapter. However, it is a very powerful piece of software and sounds great.