We ended up going to Taste of Morocco in Silver Spring on Sunday night when Sergio's turned out to be closed. Overall, as posters a while back noted, it's a welcome addition to the area. I liked the decor and found it nicer than many of the other ethnic restaurants we frequent, the prices for entrees were in the $15-20 range.
I had the couscous royale which included lamb, merguez, and chicken. Yummy with lots of steamed squash, carrots and chickpeas. Had to ask for harissa--they make their own and it's not as spicy as what I was used to when I lived in France. Likewise, the merguez which they get from a halal butcher in Virginia was moister and browner than what I knew but still yummy.
Husband's kefta (meatballs) was not as nicely presented--this was an enormous meatball platter with only meatballs on it and a side cup of rice. If I went back with a group I'd actually order this as an appetizer to share. Without veggies or any other accompaniment it was boring after a couple of bites.
We ordered a tomato cucumber salad which was very nicely seasoned but small for the price. Dinner comes with flat bread and spiced olives. There's a short wine list with wine from Algeria and beer from Morocco. I'd return happily in the future but stick to tagines and couscous.