I've been here at night with my husband and for an informal business lunch. Worked for both. The food is good, the service is very polite and accommodating, and it's in the middle of Clarendon - what more could you want from a small ethnic restaurant? I'm amazed they have hung on to this corner when larger, splashier venues are buying up leases all around. Also, as a resident of the area, I must add that they are very generous to the local community.
As far as atmosphere, it is a tiny, older restaurant. Don't expect too much. But they try hard to make you feel welcome and the food is really good. And the prices are excellent, especially for the area. They are on the corner facing the Metro stop across the street in the heart of Clarendon.