We've stayed there twice. It was fine. Nothing special, but not terrible either. Breakfast was good. Pool and spa were nice. We had one maintenance issue during one of our trips and they were very responsive. We'd stay again if the price was right.
ART stops in front of the hotel that shares the parking with them, so not right outside the hotel doors but an easy quick walk.
We stay there frequently because we're Hilton Honors Rewards members. The beds are VERY comfortable and the staff has always been very nice and helpful. You also get free wi-fi and breakfast. Its not a fancy hotel but alot nicer than most around the park.
That Hampton is just a block from the entrance to the Toy Story parking lot. It is much easier to get out of there than the Mickey & Friends parking structure at night.