34"

Good frame geometry and comfort changes from person to person. The only real way to know (unless you know your perfect geometry) is to ride the bike at the LBS. Most LBSs will order the bike but you aren't obligated to it, so if you test ride it and its just not right, at least you got to ride it. To me, that's the best way. It'll probably be fine and you's just worrying for no reason. Test it out, then make the right decision based on the feel.