We just returned from a lovely two night visit to Deep Creek Lake in the Maryland panhandle. The lake is beautiful as is the surrounding area. We stayed at the Suites at Silver Tree which are condos on the lake that rent out for daily occupancy.
The units were very well appointed with mini kitchens and balcony's with great views. There was a bit of noise coming from the outside bar and the sound insulation in each unit could be a little better. Overall a reasonable and nice place to stay. Be sure to book a room as far away from the bar as possible.
As far as restaurants go don't expect any 5 stars here as this is a vacation spot that caters to boaters and fisherman. Brenda's Pizzeria is a nice pizza place that offers great pizza and bistro type dishes at reasonable prices. For something more upscale try the Cornish Manor in Oakland about a 10 mile drive south. Great food, ambiance and service with great prices.
Swallow Falls State park and the Frank Lloyd Wright houses at Falling Water and Kentucknob are interesting atractions within a short drive.