Personally I would prefer to go the day I get there. I'm to excited not to. We have done the 3 day wonder 1st the last 2 trips too, and get to disney about 9:30am (off ship about 7:30am / 8:30am) . We skipped breakfast on board, and off we went. The drive is straight and boring highway, very quick. We got to the poly in no time. Also, stopped at super target.
End of sept. should be slow. so you might get in your room early, cr usually tries, unless you have some special request that hold you up. You should have pretty much a full day if you want it.
The last day, I like to spend relaxing around the pool. The CR has a shower / bathroom area out by the pool you can use. [ And a nice bathroom in the main building. 1st floor lobby, OR: Use the one on the 2nd floor behind the elevator bay its always deserted. ] To change if needed, or make-up etc.. . for flight home.

Have a nice dinner / lunch and off to the airport!
Any questions or help let me know! MKy!
