Here's another option for outdoor eating and drinking in the neighborhood -- El Atardecer, the Latin American restaurant at 14th and Otis, has opened their patio seating with lots of tables with umbrellas. It looks pretty nice.
I haven't been to the spot, and Yelp only gives them 2 stars, though most complaints seem to be about the service. If you've been, let us know what you think in the comments.
If you recall, El Atardecer replaced DC Fish Carryout, which was a front for crack-dealing. It was shut down and those involved were put in jail. I'd rather have pretty much anything than that.