I only stayed in building one, in a premium room, with a Disney view. But we loved it. I specifically requested 7th floor (and we got it, mostly because we booked months in advance and also asked for a room without so much tree-blockage on the view. We got room 1713, and we LOVED it. It would have been even more important if we wanted to watch fireworks from the room, but we didn't need that. As it was, we really liked the room, the view, the micro and fridge, and quick access to the water play area and hot tub (although that's on the other side of the lobby building, and there was no noise interference.
The one other thing we liked was the proximity to the street. In the morning, we'd take the elevator down and turn left and exit out the side of the building. Manchester was right there, and we'd jaywalk

across it, since there was never any traffic, and head down to the stoplight to cross Harbor.
Be advised that there is freeway noise, but the hotel rooms are very well insulated, so you really don't hear it from inside in the premium rooms. You certainly hear it on the balcony. In the mornings, I could hear a dull rumble in the distance from rush hour, but nothing to disturb or wake me... I just heard it when I listened in the silence of my still-sleeping DD.
Here's a link to my TR post #63. I took a video from the balcony of our room one morning. So you can see the view, although the matterhorn is nearly washed out in the early morning light.
http://www.disboards.com/showthread.php?t=1966863&page=5