Dos Reales makes good, cheap, and fast Mexican food. I went to the Urbana location before it closed, and made the mistake of ordering something with the cheese sauce (blegh). Now that I knew what to get, I was not disappointed. The carne asada tacos were plentiful and tasty, but could have used more cilantro. The servers are very friendly, but the addition of "Amigo" to every sentence got annoying. Still, I think this place beats every other chain restaurant on Prospect.