We stayed in early April.
Pros: We saved a ton on food. Pretty full breakfast area & light dinner (4x/week.) We really only had to worry about lunch. We stopped by Target across the street to buy some food/snacks, so we really saved a lot on food this trip.
Cons: Shuttle. They share a shuttle with the Marriott? HS is the first stop on the way to the park, so getting to the park isn't a problem (there was one morning where Marriott people weren't able to board the shuttle.) However, if you're going home past 9:30 pm, it's very stressful. There isn't an exact stopping point for the shuttle and all the hotels shuttles stop there. You're worried the entire time that you may not be able to board the shuttle. Luckily we were able to always get on, but it's a stress I'd rather not deal with again.
It was our 3rd trip in 5 months, so we thought we'd give it a try. However, I think we'll go back to staying within walking distance.