That is a VERY good mic! I've used them for recordings before (not my own, I'd love to own one myself). It has a very flat freq response an is extremely sensitive to pressure changes. I don't see why you can't use it for REW. I've never used one of my large condenser mics with REW, but may just try it in the future, time permiting. I'm curious now. I have some other's from AKG (and other brands), but not at the caliber of the TLII. BTW, that is a standard mic used in some of the finest recording studios - especially for voice.