No, I don't think they put the timeshare people in certain buildings.
The muddy swamp area is actually called a nature area. I didn't think it was too bad to look at. We liked to watch the different types of birds that were there.
Check-in and check-out was smooth.
We thought the resort was extremely quiet. We never heard the people next to us.
We thought the food there was pretty good. The free breakfast includes things like yogurt, muffins, bagels, cereal, fruit, milk, juice, and coffee. The free BBQ on Fridays includes hamburgers, hot dogs, chicken, beans, chips, and drinks. We didn't eat at any of the restaurants there.
Go to the links I provided in my previous post, and read all of the reviews here on The DIS. I haven't seen any bad ones like the one you mention from TripAdvisor.
We loved this resort, and we would definitely stay there again.