Most of the comments I get aren't compliments, more like amazement. One coworker has said the following nearly every day the weather is bad (90+ degrees, rainy, very cold, windy, etc) for the past year and a half: "You rode your BIKE today??" She always shakes her head like she thinks I'm crazy.

When I ride the Brompton I almost always get a comment from someone--either "nice bike!" or "What is that?!" Kids tend to think it's some kind of weird BMX trick bike But that's about the bike, not commuting itself.