I've had my CM Storm Quickfire XT for 3 years now, red switches. Since I've gotten so used to the reds so quickly and have used them for so long, I really can't complain about them at all. I've used blues before, but I was still much more used to reds already. Haven't touched any other switch color.
I like to think I type fairly quickly (slowly in the world of fast-typers, I don't check my speed or anything, and I am inaccurate) and the reds give me the light, quick-fingered satisfaction I look for when I type. I also use the O-rings because I have a habit of lightly bottoming out when I get in a groove. That may be part of the reason why I enjoy reds, but who really knows. I like them.