I tried the Hasta la Vista Birdie, which is a chicken sandwich with guacamole, jalapenos, and jack cheese. I found the guacamole extremely bland and there were maybe 2 pieces of jalapeno on my burger. Although it wasn't bad - it wasn't great.
However, my friend the Big Bang burger, which was good. So I will be revisiting to try something (that is not chicken) on the menu.