I just made the move from a hybrid (a Giant Cypress DX) to a road bike (a Bianchi Volpe). I'm not using it for commuting, but for recreational rides. I use a big old Dutch-style bike for commutes. On the other hand, my commute is much shorter than yours, about 6 miles. Okay, back to the Volpe. I can't get over what an incredible difference it is over the hybrid. I feel like I am flying. It's like hills that used to slow me way down aren't even there. I take corners and curves with a speed that was unthinkable on the hybrid. The super-responsive steering does take a little while to get used to.
So, I'd say go for it. I'll also note that my particular road bike is "endurance geometry," which means that it isn't nearly as aggressive as some racing oriented bikes are. It also has nice, plush 28 mm tires, so I'm probably not going as fast as I could. That's not a bad trade-off though since these tires really smooth out the rough city roads.
Best wishes for whatever you decide.