The tgv may seem a very fast way to go from the airport to the park because of the 9-10 minutes of the journey, but unless you find a train coming right after you reach the station it isn't as fast as it may seem.
You can't reserve your seat on a train travelling right after your flight landing because the flight may be late, so you have to waste some time just to be sure. Often the trains are late. It is quite usual for them having 20-30 minutes of delay. Another waste time. Then you arrive at the Disneyland station and you have to take the bus to go to your hotel. Again waste time.
At the end it is faster with a shuttle. In 30-40 minutes from your landing you are in front of your hotel.
And shared shuttle aren't so expensive.
I have found a cheap way to go from CdG to Disneyland but it takes a lot of time.
From CdG there is a bus (number 19 Express Seine et Marne) that arrives to Torcy. From Torcy there is the Rer to the park. The cost of the bus should be 1 ticket t+ (1,70 euro, I'm not sure about that, it may be 2 ticket t+ per person, i'll try that next november) and the cost of the Rer from Torcy to Disneyland is 3,30 euro. 5 euro per person each way. Very cheap. But very long. The bus travel should be around 1 hour and then there is the Rer.
It can be a good way only if you stay outside the first night. Next november I'll try that because the first night we will stay in Torcy.
