I just got my Rapha Fixed. Jersey (dumb name, yes), thought I'd share how it looks on a real human being instead of Rapha bike models. So far it's phenomenal. So comfortable, soft, breathable, and a great fit.
For reference, I'm 5-11, 183, with about a 43" chest, and this is size L.
Say what you will about their cost or aesthetic, I'm a believer already. Quality garments in a style I like are worth it to me!