I got my c2d 15" matte on nov2. since August I had been using my wife's glossy macbook. Her mb's screen was nice. However, after getting the matte mbp, I realize more and more why I like the matte on this so much more.
I got annoyed by the reflections I would get on the glossy. Also, after some hours of use, the glossy can be quite hard on the eyes imo. The matte screen is easy to look at and doesn't give me headaches after a couple hours. There are no reflections to worry about either.
As far as colour richness/saturation, yes, the mb seems to be more saturated or rich, however, for my use which is photo editing, this over-interpreted saturation can be deceiving and counterproductive. When I leave saturation levels low in editing program (since the picture is already quite saturated) and I post it on my photo site, it looks duller from another computer looking at the picture on the site.
So, I can now understand more and more why photoediting is better done on a matte screen.
My response could be more of a general matte vs. glossy response, but altogether, I can say I love my mbp matte screen. No complaints at all here.