Not based there but spent most of three weeks there last year. Coppola's a nice estaurant as is River Station. Someone might recommend the CIA (Culinary Institute of America) but they tend to run a college schedule and might not be around during the summer. Rhinebeck Aerodrome needs to be seen! Check their calendar for the schedule of events. The Marriott Residence Inn is a fine place to stay. FDR's residence can been seen as ell. Good wine country.
IBM used to be the largest employer in the area. Their campus is right behind the Marriott.