When we go to Disney we use Disney transport the entire time. Even when we drove down and had a car I think we only used that to get to restaurants off property.
When I heard about the express transportation, at a decent price, I was ready! I still have a million questions to bog down some poor castmember with once we’re there, but this post on wdwforgrownups was informative. Click here: Guest Review: Express Transportation At Walt Disney World Parks
Currently we have the required park hopper tickets and I was wanting to get the express transportation. I was also considering upgrading our tickets to annual passes since I wanted to get memory maker (photo pass) and a reason to return to the parks later in the year. I heard on some podcast that if you have an annual pass you have to pay the daily rate for the express transportation, which at that point isn’t a good deal.