Just got back from a week stay in an exterior suite parking lot view, Castaway building ground floor. We were super close to the Garden Walkway to Sapphire/the parks and worked out perfect for us. We normally would walk to Sapphire Falls to get on the boat to go to the parks, then take the bus back to the hotel.
Busses were a plenty and they always left full - so be prepared to wait if you don't yet have a full bus (every time we were on a bus it waited for people to fill all seats AND stand in the isles.)
Bayliner Diner had more food listed in the cafeteria than what was listed via online menu, so that was a nice touch to see some added food to both the international and burger/grill area.
If you plan on using the sofa bed, it's hard as a rock. At least in our room it was. We also had to ask for extra bedding, blankets and sheets. Never had any issues requesting extra items like bowls and plates or silverware and coffee.
Text service from the hotel was a little spotty - I had asked for the link for Cabana Bay information and we didn't get it until mid-next day. Most questions were answered within an hour of sending though. Internet was rough in the room too - we'd have to reconnect by the door and then would be good for the rest of the day.
And just to share my favorite personal tidbit - if you're going to play mini-golf either 1. bring your
AAA card with you for a discount or 2. hang out around the exit and wait and see if someone will give you a discounted scratch off. It hurt dropping $80 on mini-golf. LOL