TNC, I am reviewing one right now on a TALAS. I'll post back later when I am finished with it (middle to end of Aug.). For now I will say that I am very, very impressed. The one hitch that I have with it, is my TALAS doesn't seem to extend to the longer travel settings as well. I have to physically pull down the fork. Other than that anomoly, the cartridge does as it claims... for now. I don't have much time on it at the moment (new baby last week, our first). I do find it to be a tad expensive, but then so is the TALAS, and if you want an inertial valved fork with more than 100mm of travel, this is the only option.
Hope this helps a little. PM me if you have other questions.
-James