Lets see -
You will be on the monorail, so you can get to MK real quick.
You can walk to the Epcot monorail.
You will be staying in one of the largest rooms on-site.
You will have both Kona Cafe and O'Hanas nearby to eat at.
You will have that beautiful beach and stunning view of the castle.
You will have the zero entry Volcano Pool.
You will be able to dress casual and not feel out of place anywhere in the resort.
I think you made the right choice.