I was worried after reading the reviews too! Let me reassure you. Our stay (earlier this month) was excellent. Yes the hotel is older, it is time to refurbish it, which is what they are doing. However, it is by no means run down. Check-in took about 15-20 minutes (if that). CM was very friendly.
Mousekeeping was good. The room was clean. One day we had the do not disturb sign on the door, so they left towels in a bag that was hung on the door. Of course they didn't get the dirty towels that day, but that was fine.
The grounds were nicely landscaped. We saw an armadillo (sp?) early one morning as well as several bunnies. DS loved the Goofy baseball pool, and all the sports stuff. The resort was not too crowded, and not loud at all.
We went to the food court once for breakfast and once for lunch. It was running smoothly both times. The turkey sandwiches we got for lunch were really good.
Bus transportation was excellent. For MK we always had our own bus. We shared for Epcot, but it was really quick even with stopping at the other All Stars. We only had a two day stay this time, so I can't comment on travel to the other parks.
We really enjoyed our trip and would stay there again. Have I reassured you at all? I felt the same way, especially when I read the stuff about Mousekeeping since I have a baby, and am freaked out about cleanliness, but when we got there I felt so stupid. ASSp was wonderful.