We really enjoyed the pool that we paid to have heated! The patio/pool area was a very decent size so all 12 of us could be outside at the same time. In fact, 2 teenagers & 4 10-11 year olds were having fun in the pool at once. The neighbors were not super close so that gave us space to play catch in the yard.
We have a list of things that are minor kind of details but that we weren't happy with: several remotes didn't have any batteries, the main TV didn't have HD (this made it disappointing to watch the semifinals & final of the NCAA basketball tournament), the TV in the upstairs living room only got a few channels, there were no hand towels in the house and only one wash cloth, there weren't enough spoons for all 12 of us to use at the same meal, there were only 5 chairs for the patio table, none of the outlets in the island were working, the carpet was quite stained/worn (2 places tack strips poked out). Our kids were disappointed that the only game provided was a foosball table & the score counter was broken.
A bigger issue for 2 adults was the beds were not comfortable (very firm), so much so that their backs hurt in the morning and they didn't sleep much during the night. Of course, this issue is a very personal preference. None of our 8 children complained about the beds.