I stayed here with family a few years ago when we visited the Chateau Versailles. I thought it was a charming HI and not at all like central Paris of course. We drove out from Paris and as said, it's a bit of a drive especially if you hit traffic. I think we ate in the hotel restaurant which was fine and kid-friendly. There are lots of restaurants nearby if you have a car.

If it were me and I wanted to drive into Paris, I'd do just that. But if you aren't used to driving in a large European city, and want to avoid expensive parking, maybe try public transport. You could drive down close to Versaille and find free parking near one of the RER C stops and take the train in.