This is not your regular B3 clone and if you want B3 sounds, get NI’s B4. This VSTi covers the other organ sounds and does so very well. I picked up the expansion for NI’s B4 expecting great things, but honestly, ComboSister gives me something that B4 does not. It sounds like a combo organ you might find in a rock band. Not exactly like a Farfisa or Vox, but maybe like one you would hear on stage after the keyboardist sends it through his rig. The only thing I don't like is the interface. This VSTi is a much better value than the expansion for B4.