I'm liking the look of this, and I'm a confirmed Cakewalk user (Home Studio 2004).
Right at the moment though, I'm exclusively using my Boss Micro BR palmtop for all recording, mixing, and mastering - and I'm getting far better results out of it than I've ever managed out of my DAW (or out of professional studios I visited when I was younger!).
However, I'm starting to feel, with the stuff I'm learning on the MBR, that I could get some stuff done a lot quicker with an up-to-date DAW on a decent PC.
I've been planning on Sonar whenever I get me a new PC, but this looks like a bit of a contender...