We've stayed at Reunion several times. Carriage Pointe is off Old Lake Wilson, but not accessible directly from it other than within the resort itself, if that makes sense. It's all walkable, but it's fairly spread out. Carriage Pointe is a bit further from the water park than the condos at Reunion Square (which are right next to it) and Centre Court Ridge. Those at Reunion Square are newer. Then there are the condos within Reunion Grande, although they're probably more expensive. We were lucky enough to get a ridiculously cheap opening rate. Our other stays have been in homes on Homestead.
Reunion defies description. It's fair to say, though, it's in a completely different league to even the most upscale of the villa communities.