We went in 2012 when dd was 7. We spent a week in Paris (which was amazing) and went for the day by train. We got the last train back to Paris.
We went only because we thought dd would love it. I have zero interest in either Disney or theme parks. I did not share these views with dd and she was excited at the thoughts of going.
However she was less impressed with the reality. LOTS of queueing. She spotted the dumbo ride and wanted to go on that first. We stool in line for 55 minutes for a ride that lasted less than a minute (or so it felt) she wanted to stay on for a second go but no chance of that. So we moved to the teacups - again HUGE line snaking all around the barriers. We spent so much of the day queueing, it took the good out of it for all of us.
Then the mountain ride was closed as it broke as it was going around and people were trapped in it and had to be rescued.
We did enjoy the haunted mansion bit, that was good.
Food very very medicore and expensive. And the thing I liked the least was how at every hands turn merchandise was being flogged - shops, street stands etc. Very hard for kids to see it everywhere and not get something if you are on a budget.
I was very very very glad to get on that train back to Paris and know that we had ticked that box and would never have to return!
She is now a teen but we were in Paris again a couple of years later and asked her if she wanted to go back - no way - too much queueing was her answer.
We never revealed our feelings about the place when we were there, we kept is all upbeat and jolly etc as we wanted her to enjoy it but she made up her own mind....
If I won a tip to florida or california I might go but otherwise....no! Far too many other places on my wish list