Good. Riding a mountain bike or hybrid on the road is misery. You'll pick up a few extra miles per hour in speed without any extra effort.

You are now the biggest sales demographic: ex mountain bikers who go over to the road. 10 years from now, once again, road riding will be as unpopular as the plague - these things go in cycles as driven by bike industry marketing. Nevertheless, a few of us old timers never left the road.

Biggest mistake that ex-MTBers make in in their road bike purchasing decision is projecting what is worthwhile on a MTB onto their road bike purchase. For example: sloping top tubes on frames. On MTBs, this helps to prevent crushing your 'nads. On a road bike, it only results in a heavier overall frame and a long wiggly seatpost.

Second: disk brakes on road bikes. These are heavy, fussy, and a PITA during wheel changes. Not necessary and almost as useless as suspension forks on a road bike.

Weight is critical on a road bike, particularly on the wheels. Get the lowest possible. A 1,300 gram wheelset is a revelation relative to the crappy OEM 1,800 gram wheelsets that come on most mid-level bikes.

Number of speeds. For the last few decades, component manufacturers have been involved in an absurd tit for tat arms race of adding another cog to the cassette every 7 years. This has the advantage to them of being able to render 'obsolete' the whole previous fleet of bikes. We are now at 11-speeds, where the point of diminishing returns was well past with 9-speeds. If you are riding a good amount, you will wear out several chains per year. Check the cost of 9 or 10 speed chains vs. the more expensive 11-speed chains.

Component level. 10-speed Tiagra will be just fine. 10-speeds will provide the advantage of cheaper cassettes and chains relative to 11-speeds, stronger wheels with less dish, and the Tiagra levers do not have the shifter cables wrapped under the bar tape. This is actually a good thing, as the cable runs are smoother, with less friction, and provide crisper shifting that the higher-level Shimano levers.

But I ride Campagnolo, which is again superior to Shimano in many respects.