After walking around on a recent Saturday afternoon, we decided it was coffee time. As near as we can tell, Mayorga is the only coffee place at National Harbor, so we stopped in around 4 pm. The place was a mess- full of people, and trash. The counter looked like it had not been wiped clean in hours. We waited in the long line, once we figured out where it started, and it took almost 20 minutes to get coffee. I wish there were alternatives nearby.