Where to start with the TGV train…read more
First, logistically on the surface it appears to be an amazing option. You fly in, go through customs, get on the train, have a short trip, and you're at Disneyland Paris. But the reality is it's hard to find the train because there's no signage that lists TGV, just signs with a picture of a train, so we walked toward it hoping it was the correct area.
The trains themselves also lack signage. So we got on a TGV train at the correct time, in the correct place, thinking it was our train. But we had tickets for a car that wasn't there, so in the end our first class tickets were useless and we sat next to the bathroom.
There was no announcement in English so we used Google Maps to confirm we were in fact, in the correct spot, but for a bit we were worried we'd gotten on a random train and had no idea where we were going because there are 0 attendants in the cars to ask.
In the train cars the aisles are small and tend to be cramped because a lot of people have luggage that blocks the walkways, so generally the navigating experience simply wasn't pleasant when compared to a bullet train like in Japan.
All in all, we don't plan to go back to Disneyland Paris because the transit to the park was so difficult - I generally find Ubers easier (and in this case cheaper) to use - so overall I recommend hiring a private car to take you to and from Disneyland Paris and foregoing the TGV train.