We stayed there in December and again two weeks ago. Be sure to get a room key card for each person staying in the room - even kids - as you WILL be asked to show them at the rides during EMH and you will need one key card per rider.
We really like the Hilton - it's clean and much more upscale than the moderates on WDW property. We didn't use the busses since we drive, but they pick up every half hour. You can also walk across the street to DTD.
The Hilton has a 24-hour marketplace in the lobby, which is really convenient if you want water or a snack when you come in late from the parks, or for getting coffee and a quick breakfast in the mornings.
Hope you have a great trip!