I love my internal 3 speed. Weight isn't really an issue (what's the weight of a hub against the weight of my gut?) Not having anything sticking out is nice - with all of the junk in the roads here I'd be willing to bet I'd have broken a deraileur by now. Shifting down at lights is great because I always get caught at the same light, halfway up an short but steep climb on my way home that if I didn't get caught by the light I could make in normal gear. Mostly though, I like the small gear number because I've never really used more than a couple of gears commuting, here or in CA, and while I'm not ready to go SS yet the internal gets me close to the zen place of biking where there is no shifting to think about.