Hunan in Chagrin is one of the best restaurants around. The food is excellent! My family and I have been coming here for many many years, the servers are friendly, and the owner always recognizes us. Reservations are recommended because it gets very crowed (especially on weekends.) As far as the menu goes I haven't tried anything that I don't like.
Some suggestions would be:
Wonton Soup
Walnut chicken
General Tso chicken
Mala string beans
Also despite the name it is a couple miles away from the falls...