I think the food is ok, but I never thought food is Amanresorts' strong point anyway. Meals I had at the Bali Amans were just horrible, at least the food at Amangiri is decent, not good but nothing I'd complain about either.
I did find the menu a bit limited though, but staffs told me they can pretty much make whatever I wanna have (as long as they have the materials), so that's pretty much what I do all the time, just ordering off menu!