welcome! we really liked 1900 park fare. it was our first dinner ADR so that always makes it special but looking back, after having been to quite a few character meals by the end of the trip, I have to say that 1900 had really good character interaction. prince charming, cinderella and the sisters took their time with the kids - we didn't feel like they rushed at all. they stopped at our table and chatted, it wasn't a "quick-pose-then-on-to-the-next-table" kinda feeling at all, one that i did get at a few other places unfortunately. prince charming and cinderella also danced in the middle of the room part way through and then called up all the little princesses (and princes!) to dance too. that extra interaction was really appreciated. 1900 is definitely on our list of top must-do's for our next trip.
i'm sure you will love it as much as we did.