Went last night. Party of 5. Three of us had mussels, one sole, and one carbonnade. Everything was very good. Great Belgian beers, tho not cheap of course. Fair wine selection. Large variety of traditional and non-traditional mussel preparations, with very flavorful juices subject to being dipped with the very good bread. Long list of specials. Excellent pomme frites with house-made garlic mayo. Definitely worth the drive to Olney. Check was a bit over $200 all in (including beer/wine). Don't go without reservations however. Also, it is a "do it our way" type of place, so if you are a "I want it my way" person be prepared. Also, vegetarians need not apply.