I had a room on the airport side and didn’t find the noise to be a problem. If you are a light sleeper it could be a problem. Actually, the kid in me really enjoyed watching the planes coming and going.
The walk to the training center when the gate is not open is pretty bad with no sidewalks and no ped crossing. I think the shuttle brought me over there and dropped me off outside the cheese grater.
Nothing close for food except in the hotel and Delta cafeteria.