We just got back from ASMu last Wednesday. I had never stayed at the All-Stars, I usually stay at a Deluxe or Moderate resort. I wasn't expecting much. It was a quick trip and we weren't planning to spend much time in the room.
I have to say...we loved it! We didn't expect to, but we did. We had a third floor, corner room in Broadway building 7. It was really quiet and we were pretty close to the parking lot, so it wasn't far to our car. It was a good 5-10 minute walk from the main building, but we didn't go there often. We used the online check in, they granted all of my requests (top floor, Broadway), and I got a text when our room was ready. We never went to the main lobby of the resort. The rooms are small. We were just two adults, so we fit without a problem. I could see if four full grown adults tried to stay in one room it would be a bit crowded.
Every cast member that we interacted with was very polite and nice. Actually, in general we kept remarking how the cast members all over property were a lot more pleasant than we have seen in years. It was refreshing.
All in all we would definitely consider staying here again. You can't beat $83/night on Disney property!