Long story but due to horrible weather back home I actually kept vouching back to Disney at Pop for 4 additional nights beyond the one and only night I was going to stay there, each one in a different room (and countless DME trips to and from MCO
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When I left (the final time lol) The building of the 50's that looked like it was almost ready for guests again was the long portion of the building with the number 8 on it. Drapes up, punch list off the windows, putting towels etc in there when I left. At that time they closed down the long portion of building closest to classic hall. Over the course of a month I was down there I visited a few times to peek at the gondolas and noted demolishion was still happening at the building with the 8 on it and possibly a portion of 9, maybe but there were guests in rooms nearer to the bowling pin pool. I was under the impression that the balance of the resort had renovated rooms. They did reopen the bowling pin pool though. Me I'd stay in a different area. By daylight there is so much construction foot traffic and a few carts, carts full of debris being hauled along with the new stuff coming into the area for the rooms. I stayed in a brand new, meaning me first in the 90's, a night in the 80's, a night in the 70's and 2 nights in 60's. By far I'd stay in the 60's given the choice as I was in the wing that overlooked the pool and closest to Classic Hall. I'd start to brace for 50's possibly not being available.
I had only stayed at Pop once before ten years ago and didn't care for the rooms. Now they are more tranquil and lighter. In rooms with 2 beds they are queen and were a good quality. I had both queen and king rooms and I actually liked the queen version more. My only complaint is the floors. The fake wood and the white-ish bath floor tile really show every smug of dirt and in all honest they were dirty. I kept shoes on when not in bed.
Hope that helps