It's about a 10 minute drive using I-4 to get on World Dr, Disney's main road. The Champion's Gate exit (58) on I 4 is just a minute or two away. There are a few different entrances to Reunion. The south entrance on Osceola Polk Rd is the best for getting to I 4.
One of the north entrances accesses Old Lake Wilson and the other Sinclair Rd which then goes to Old Lake Wilson. Old Lake Wilson will take you up to 192 and you can then get to World Dr. Either way will only take about 10 min. DHStudios will be the closest park (12 min)and MK will take the longest time (20 min) to their parking lots.
192 has hoards of eating places which you could be to in less than 10 min. using the north entrances.
Along the Osceola Polk Rd right outside the south entrance to Reunion there's a new Publix, Chinese takeout (which is good), Subway, Papa Johns, a CVS pharmacy, another pizza place, McDonalds at Champion's Gate and a few other things.
The Seven Eagles section has a very nice pool (zero entry) and fitness room. The Villas South is near the waterpark. The Grand probably has a fitness room too, their pool is on the 11th floor, nice view. Here's a map of the communities, we stayed in the Homestead section and Patriot's Landing in pool homes but visited the waterpark and pools in some of the other areas. Here's a map of the neighborhoods:
http://reunionresort.com/experience-reunion/location-map
Here's another map of the area. Reunion's waterpark is #22 and I moved #21 to Seven Eagles.
http://maps.google.com/maps/ms?ie=U...8.272032,-81.608849&spn=0.068335,0.11055&z=13