I commute 1 day a week seasonally, last couple of years I alternated a converted Motobecane Mirage with 12 spd Shogun 400. Just gave the Moto to my buddy, I wasn't using it this year. As comfortable as it is, it's still pretty heavy. 42 hilly miles round-trip is a bit too tedious for that. I would add, I'm surprised a lot of the (cheap) new production fixed gear street bikes are so heavy (21-23+ lbs). Seems to defeat one of the key advantages of less parts.