I visited Passport boutique in NW DC last weekend. There were some major hits in the mens section but some misses in the women's. The owner, Karoush was very nice and informative, but his choice of space and location was elusive. You would probably pass right by it, not even knowing it was a clothing store, I sure did. He converted his home into a boutique, so it looks like an ordinary house. His mens pieces were very nice, stylish and tailored.
His women's and mens prices varied, mens being more expensive then the women's. Overall it was a great boutique and a great experience, I would visit it again!