There's a Nando's in Bethesda, and nothing about it looks appetizing. Chicken in sauce? Dull. Especially as DC is the best place on the East coast for food.
You really need to go. The chicken is great, their sauces are great, they have great mashed potatoes.. really, everything about it is great. I will say that I preferred the stores I went to in the UK to the one I've gone to in DC but it was still totally worth the trip up from Silver City or whatever the little area by the airport is called that I have to go to yearly.