Our 6 and 8 year old think the splash pool is perfect. It's perfect for mom and dad because we can be inside with our feet up on a couch and watch them swim just outside the sliding glass windows.
For adults it's not really big enough for "swimming" but it's the right size for floating and lounding in the water. Especially if it's winter and the pool is heated and the jets are on.
I can't swear to it, but I think the pools are about 12 feet by 12 feet. You should be able to find a pic of one pretty easily at the Windsor Hills website on any townhome posting.