If you buy this you get a serial key to registrate a Drum Midi Pack for the Toontrack EZ Drummer. Works with EZ Drummer version 1 and version 2 also. There are a wide range of styles that you can choose to download on the website of Toontack (you have to create a login for download). The sounds in the Midi Packs sound very realistic and it's fun in order to make recordings with it. But it would be nice if the packs could be a bit cheaper.
Good demos of the individual packs are available on the website of the manufacturer .
Toontrack drums sound so real and are perfect if you don't have a soundproof studio to record live drums. Or if you can't afford hiring a drummer who can play anything and does it well. EZdrummer2 is the latest and you can add numerous rhythms, styles and drumkits through midi-packs and extensions. Or compile your own ideal drumkit from the parts of the kits you collected. I recommend you take some time to learn ALL the brilliant editing options of EZdrummer. You can find instructions on (Toontrack's) Youtube.