I love Dos Amigos and have been there many times. Especially the fish tacos and the guacamole. The thing that's been souring my experience is that I keep getting the bitter server. Yikes, she acts like I owe her money. When I ask questions about the menu she lets out a frustrated sigh. She says no to any request, she's inattentive. Forgets things. She once made a big issue about me ordering a side of salsa. I said I was happy to pay for it. She didn't bring it out, but she did charge me for it.
If you go, ask for one of the waiters. They go have sparkling personalities and are extremely attentive. And when you go, seriously... The fish tacos are unbelievable.