We enjoyed our stay at the disney yacht club resort. We had a great time, the only thing that put me off was the 18 - 20% tip they demand with the breakfast. If you put 10% or 15% some of the waitresses will not accept the tip which I find rude and ungrateful.
The staff was helpful and friendly in general and did their best to make us aware of flight details or other personal details. However if you do not want a long delay or have to leave the hotel more than 3 hours before your flight check your bags in at the hotel for most flights and take a cab to the airport. You have to stop at 3 other resorts after the yacht and beach club to pick up other commuters on the magical express.
The walking distance to Epcot is about 12 -20 minutes for people who don't usually walk and for the athletes or those who walk alot it would take about 5 - 8 minutes. I would suggest you take the ferry there if you don't enjoy walking or to take the bus to hollywood studios and catch another bus to Epcot. If its your first time going to disney please make sure you get all the details of how to get around from the hotel staff and make sure to ask your bus drivers questions too. Failure to ask questions will result in unecessary stress, walking and tension.
I hope this helps someone.