Ok, rented said road bike, and I have a couple of recommendations:

1) DEFINITELY bring your own seat. I skipped this since I was trying to travel lighter and I really (really) regret it (ow. damn.).

2) You might also check if the bike shop has a couple of different road bikes in case the fit is off on the one they have in mind. In my case, the bike I rented was the only 49 cm they had (everything else was much bigger), but the fit was really off. I tried to monkey with the seat and the handlebars, but I could never get it right and ended up being in pain in the shoulders & arms from riding wrong all week.

Arrrgh! Glad I had a bike, it was good to ride, but this was not my best experience.