Here's how lazy I was the day we did the 4 park challenge- My grandson was clearly getting tired so by the time we got to AK, we decided to call it a night for him. We were at AK until closing, my daughter and son-in-law were still going strong and ready for Epcot and Illuminations. For me, rather than face the long walk to the AOA bus and the long lines from a closing park, I opted to use the express bus and ride to Epcot with them. Once there, it was a much shorter walk to the resort bus and because Epcot was still open, no waiting in line to board or standing for the trip to the resort. There was actually a bus at the stop and we got right on. So even walking from the tree of life back to the express service was a much better alternative than walking to the resort bus.
It's difficult to get across just how easy using this service is and how much time it saves as well as footsteps. I wish they had express service to the resorts!! Never satisfied...