Duo Housing is a decent location, but you definitely get what you pay for. There are holes in the walls/doors, mold in the showers, and bugs all over the place. They claim to clean out the refrigerators of old food, but I have never smelled anything as bad as the refrigerators at Duo Housing. They clearly don't clean them out! And for a place in the very humid city of DC, you'd expect them to at least have a functional A/C.
The redeemable parts of Duo Housing were the staff (who were very helpful) and the other guests (most of whom were kind and decent. Some of whom were brash and rude).