Was it easy to get from central Paris to Disney? Did you get a Visite Pass for transportation?
Yes - easy. We stayed at a hotel not too far away from the RER stop "Nation" (we did have to take the metro to get there, but even that added only little time to the whole journey) and it is a 35-minute trip from there.
I used a Carte Orange weekly ticket for myself (valid from Monday to Sunday, you need a passport-size picture) and a 5-day Paris Visite pass for my son (since there are no reduced Carte Orange tickets for children). Both together cost about 55 Euro.