The staff at Hotel Gaillon Opera were very friendly and helpful. Overall, the family size room we stayed in was nice. To note for families looking at this option, the kids’ beds were more like cots than sturdy beds — worked okay for a couple of nights, then kids were uncomfortable. The hotel was generally clean, although the family / attic room did have an ant situation. The hotel staff did address the ants when requested. I would be cautious of booking the room if you plan to have snacks and/or eat any meals in the room.