I do not record directly with it, I use it to tweak audio files after I record with a stand-alone Fostex... however, many people DO use
Kristal Audio Engine (KAE) and they really like it. I like it a lot. There is a very helpful forum. And for now, it is FREE. They will charge for it in the future.
EDIT: I forgot to mention another, newer, more robust one that is also free at this time -- Reaper.
[This message has been edited by SemiLiveMusic (edited 12-25-2006).]