OP here again!
In answer to the valet and bell services question - valet parking and bell services are handled through the CR lobby. The only desk in the BLT lobby is a
DVC desk. If you want luggage assistance on your way in, you have to unload at CR and then park your car at BLT. I just parked at BLT and brought in my own luggage - I needed something to do that early in the morning anyway!
Room service is also handled through CR. The menu looks pretty good, although I haven't ordered anything yet. I have bought a few odds and ends at the new Marketplace store. Their selection is pretty good, and the prices are about the same as any convenience store. I wouldn't rely solely on their selection, but it's good for things you run out of or couldn't pack.
I didn't realize I would miss ceiling fans so much. There aren't any in the room, and I'm so glad I packed my small fan. I like to have air moving when I'm sleeping.
Speaking of sleeping, the beds here are unbelievably comfortable. I could just spend the entire trip sleeping! Well, maybe not the entire trip, but most of it.
The sky bridge is very convenient except for one thing. They put in automated accessible doors and they are time consuming to use, and the doors are really heavy to move if you don't use the automated function. The automated opener at the CR door doesn't work at all for me - I push the button and hear it click, but nothing. The walkway itself is nice - although I wonder how it is in a rain storm (we had a blinding rain yesterday for about an hour - I couldn't even see the ground ouside the windows).
I can see the Epcot fireworks from my room, as well as the EWP, so I feel this room is in a good location.
Keep asking and I'll keep trying to answer!