Hi. Most of our family enjoyed these rides when we went in April. DH, DD7 (daredevil), and I could have ridden multiple times in a row and did. However, our DD9 is not a daredevil and we had a difficult time convincing her to ride. She rode once and that was enough for her. If your daughter doesn't like regular roller coasters, I don't think she'll like this ride. I don't think you'll have issues with the enclosed parts because it's so fast, as a previous poster said.
I personally found the ride a bit rough and it can hurt your bum if you con't keep it up. Our dd7 (the daredevil) loved it all 8 times she went(!!!) but did complain of a sore bum. She's a skinny little thing and I was afraid she was going to come flying out of the raft!
Hope that helps! Enjoy your trip.