Here's the view from room 566, which is the last room on the 5th floor. (The 5th floor isn't as large as the 4th and below.) 566 is a dedicated studio.
You can actually lean out and look around the building to see a glimpse of Spaceship Earth and The Land. However, you can't see the fireworks. Because it's on the end, it also has a unique balcony, which is much larger than most.
Here's the view:
Because of the location of the room, it also has a unique entry hall. There's a lot of room in the hall that leads from the front door to the room. We kept two large suitcases (on luggage stands) and our owner's locker there. (We were only staying 2 nights, so didn't fully unpack.) There's also a second closet in this room.
Now before you all go change your reservations to request this room, let me give you the down side. The room shares a wall with the pool elevator. Whenever someone rides up or down in this elevator, you can hear the motor running and the counter-weight rumble past the wall.
I sleep with a CPAP machine, which makes a lot of noise. So this didn't bother us while we were sleeping. Also, this elevator doesn't get a lot of use in the late hours. However, when we were sitting in the room, it was certainly noticeable. We'd joke "Going Up" every time it would run.
We decided we loved the view enough, and were staying for a very short stay, so didn't make a request to move. Others may find the elevator more annoying than we did, though.