I started commuting on a hybrid, but have moved on to my road bike conversion. I was worried about bumps in the road making the commute less-than-fun, but it's not that bad and the road bike is a heck of a lot faster. Occasionally, I'll ride the hybrid, like if I need to carry heavy stuff on the rack or panier, but after getting used to drops, sitting in such a upright position on my hybrid makes me feel like I should be wearing an ascot, smoking a cigar, and reading the Wall Street Journal.