What a great way to get to d/town so peaceful and relaxing alternative to the bus.plenty of photo shots along the way .
We stayed at Port Orleans Riverside earlier this year and took the river cruise to Downtown Disney. I would recommend giving yourself some extra time if you have any sort of dinner reservations at DD and/or for Cirque du Soleil. I think they say boats come every 20 minutes but seemed a lot longer. The capacity didn't seem all that large either and if you have people with strollers or wheelchairs it's even less.
What a relaxing way to start your disney experience.You just climb aboard and enjoy the trip to downtown disney. I can't wait till we can do it again.