I just ordered a new plugin. Have not tried it yet but it got positive reviews on gearslutz. Good for mastering and recording.
http://www.youtube.com/watch?v=b7ABPG98tK4
I believe the overload problem he is having is Macintosh specific. I don't know if they fixed it yet.
I bought it on sale for $81 at plugindiscounts.com. The sale possibly is until the end of this month. Electronic download delivered within 24 hours.
A little trivia, Abbey Road Studios originally only allowed this device to be used for mastering. The Beatles were the first group allowed to use it for recording with Sgt. Pepper released in June 1967. That album was a remarkable feat considering recording limitations of the time.
Update: Just went through the DRM and tried it out briefly. I use the crappy Halion S90 Yamaha piano for a temporary piano since it has a small footprint. This plugin definitely makes it sound more real and quickly.