Love both courses, club house, as well as practice areas. One of my go to places in the valley.
Only complaints I have are pretty consistent in most reviews:
1. They run out of carts all the time on weekends. Just buy more carts, as when they run out it gets pretty chaotic.
2. It can play a bit slow on weekends, but that is usual especially this time of year. Love Biltmore and will continue to play often.