Our rooms had the daybed twice, and one time bunkbed--but no balcony. They all had the same view of the car parking area. We had always booked a "standard" room with the hopes of being upgraded (we did all the usual things trying to get an upgrade--calling ahead with a request, asking politely at the desk, etc...) but were always told there was no upgrade available, as the hotel was fully booked. I think we were placed in the daybed rooms because we are a family of 5.
This trip we are not leaving it to chance, and have booked a downtown disney view, which will gaurantee a balcony for us. I think one reason we have never "loved" the GC (we tend to be more DL Hotel types) is this view thing mixed with the no balcony. I am looking forward to this next trip changing my opinion of this hotel. It will be just me and my girls, so just 3 of us--making the daybed issue something we won't have deal with.
When I looked it up online, it said that 90% of the rooms at the GC have a balcony. We just always seemed to fall into that *lucky* 10 percent that did not.