I visited the Clifty Inn this weekend for a choir retreat. They were very accommodating with our large group. The rooms were comfortable. I wasn't in the room much...there was an awful lot of rehearsing going on for us, but I slept very well.
The food was pretty good and the waitstaff, most of them, were pleasant and on the ball. The room provided for us to rehearse in was great for our use, as was the room provided for socializing after our late rehearsal.
Overall a good stay. I wish I'd had more time to explore the park...next time.