I heard Mark's rather controlled demo of the Burwen-Bobcat at H.E. 2005 in NYC. It was smooth, but not overly involving or "magical." However, since we were unable to hear an unprocessed CD, it's hard to make the call. I have an EQ in my rack for those times when I just can't tolerate a bright rock CD. I use it less and less as my system improves.
The problem, of course, is that along with taming that digital edge, you also dump detail resolution. Having heard redbook playback systems that offer plenty of resolution without any digital harshness, I know what's possible. Now, my mission is to get as close to that ideal as possible without taking a second mortgage out on my home.