I don't think we'll ever stay at POP again after our trip there!
We had a preferred room (we usually do, so we're closer to the food court since I grab breakfast for the family and bring it back to the room, and we like being closer to the bus).
We had a problem with noise - at all hours of the night from the pool. Seriously, the first night I called the front desk at 2am to find out what time the pool closed. They said midnight - I told them they might want to walk out there because there were dozens of people in the pool screaming and making all kinds of noise. It kept waking my daughter up. We had the same problem our entire stay. (We tried switching rooms, but they didn't have another preferred room that wasn't facing the pool)
The crowds at the food court - holy moly! There were lines everywhere at all times! It was craziness. Quite overwhelming for our family.
We've stayed at ASMu several times and it's restored my faith in values. It's not too crowded, we've never had a problem with the buses. At times, where there are the large Brazilian groups, the food court can get overwhelming, I learned to go a little earlier and it was fine.
And funny thing - pp mentioned a lake at POP? I've never seen it, although I do see it on the map!