Okay now that I have returned I can share my thoughts on this service. We bought the $24 for 7 days option. We used the service from 1/3-1/9. Of those 7 days I believe we actually used the service 4-5 days. Even with not using it every day its a great service and saves so much time. We traveled with a DVC member and right off the bat she said that the price of this is going to go up as soon as more word gets out. I have to agree with her. While we never encountered a full bus we encountered others using the service every time we used it. I think pricing will go up if this becomes a permanent thing.
Two improvements I wish they could make. The first would be to post the times that the buses leave for each park. I don't want to have to go up and ask every time to find out when the bus leaves. Posting the times online or on the flyer would help. The second would be something we encountered. We literally just missed the DHS bus from Epcot so the next bus was in 30 minutes. Okay, no problem, however the CM came over 15 minutes later and said the the DHS bus arrived but we had to wait until the AK bus departed. I thought that would take a couple minutes. No, we had to wait another 15 minutes for the full 30 minute before we could leave. I was a little ticked off at that.