We went at Easter and were amazed how short the queues were having heard horror stories. I think we happened to be there a week when the English kids were off, but the French kids had gone back to school. Result.
We stayed at the eurocamp on the other side of Paris, and caught the train which went directly across Paris from virtually door to door in about an hour. You can get week long equivalents of Oyster cards for about £30 per person which makes sense if you want to go back or go into Paris.
We only went to Disney for one day, but two would have been better ideally in order to use the other parks more – but as we’d fitted so much into one day there, we decided to do something else with the other £200!
On a down side, the abiding memory is just how quaintly old fashioned a lot of it now seems in our world of CGI and video games. Essentially half the rides consist of “sit in a thing and travel fairly slowly past a lot of other fairly badly animated things”.