We had a garden view RR our last stay, and thought it was a perfect location. I requested the Riverside area of Oak Manor, close to foot bridge. We got exactly that, and looked out at the fountain and gardens. We were close to foot bridge to go over to food, & main buildings, the quiet pool was on the other side of walkway, and a short walk over to main pool. Maybe 5 min.
Take a look at page 1 info. You can phone reservations to add requests to your reservation, and you can send a fax 4-5 days before arrival. We arrive early, because we Fly into Ft Lauderdale first to visit family for a few days, then drive up to wdw. I never check the take first available room option on the online checkin form. It voids any room requests you have. I'd rather wait to get my room, and get the room I want.
You can just check any bags you have with bell service and head out to a park, or you are welcome yo hang out at resort. The main pool has changing rooms and lockers. Pack what stuff you need in carry on.
If you live in the U.S. Your magic bands will have been sent to you, and if you've provided them with your cell phone, they will text you when your room is ready. So I'd just stop at the desk when you arrive, to check in, being its your first time. Those of us living outside of the US have to get our bands at the desk, and don't get room ready texts! They will send a room ready email which is very slow. Last August at Poly we got our room ready email 3 hrs after we were in our room!!