We stayed at the ibis Marne La Vallée Val d'Europe for four nights. I picked this hotel for its location to Disneyland Paris as we were going to spend a day at Disneyland. I thought it would be more convenient to stay outside of the metro Paris area and take the train into Paris for the two days we would visit the city. The train station is just outside the hotel so easy access to the 5 minute train to Disney (2.25 euro OW), the 45 minute train to Paris (4.40 euro OW) or the 30 minute train to CDG (22 euro OW from the Disney station). It turned out to be a great decision from a convenience point of view. The hotel itself was very clean and the staff was very welcoming. We booked a standard room and it is standard for Europe - a bit small, Queen bed, small desk, a place to hang some clothes and a small bathroom with a shower. Very basic, but we were out and about all day and just went back to sleep so good value. Breakfast (12 euros) in the restaurant was nice with your basic offerings served as a buffet. There are a few other restaurants nearby within walking distance, but it is limited. We had dinner at Bistrot 51 which was really good. The Disney Village has lots of food choices.
Overall, if you are planning a trip to Disney Paris and want to save some money, this hotel is a good choice. I would definitely stay here again.