Haven't had mine long, it's only been 1 month so far but loving every minute of it.
I too was worried about the "loudness" of the CR seats and colour in general while i was waiting delivery but when I saw it in person, I knew the right choice was made.
Exterior choice was Alpine White.
I have previously had beige (sooooooo hard to keep clean) and black/dark grey seats. I'll agree with you too that the dark colors are just easier to care for but at the end of the day I wanted something a little more dramatic this time round, so opted for the coral red.
As the previous post mentioned, worried about denim transferring color? I just keep a towel/throwover thing in the car so that if I'm in denim, I can just lay it down before hand.
more CR pics in my intro thread here:
http://www.f30post.com/forums/showthread.php?t=774104