BBQ Widow, last Easter, and this August, we are staying in Terra Verde Resort (Kissimmee area). It's just off the 192 and is the perfect location for Disney (15 mins away, no driving on the I4). It's just like driving on an A road.
We thought the location was so good (because of not using the I4 for Disney) that we booked a different (need 6 bedrooms this time) villa but in the same location.
I found the villa via Terra Verde's own website so that I know the Villa exists and goes through the resort.
There are loads to choose from. Some are terrace town houses, some don't have pools (there's a resort one), so be careful. Look at the pictures - if there is a solid wall to the side / to one side of the pool then it's a terrace (not many of these), and check it actually has a pool (again in the minority).
If you're interested in staying there o can take a look for you if you tell me how many bedrooms you need.
There are loads of Villas on the US27 where we stayed the first 2 times we went - but it's further to travel (only about 30 mins from Disney on a bad day, but can make a difference if only 1 person drives). Certainly don't rule it out but we won't stay that side of the 192 again, if we can help it, we've found perfection and aren't letting go 