Yes, you are right...once inside Disney property (including Downtown Disney), you can use the transportation! Just make sure you know where you're going and what bus number to get on, and also the buses don't go from park to park....they only go to the hotels from the parks, so you need to keep that in mind when traveling Disney Transportation! (The monorail of course does both EPCOT and MK along with the Contemporary, Poly and Grand Floridian, although changes are necessary at the TTC.)