Great service and fantastic food. Minus a star because the kitchen always takes forever and things are priced a tad high.
I'm a fan of the chimichangas, but if you're looking for a smaller meal try the taquitos. They also have great horchatas and a wonderful back patio (in the summer).
On weekends they sometimes have a mariachi band come by and sing/play as they walk from table to table. I hadn't experienced this before and it was really neat.
It's too bad they won't be around for long, sounds like the condo developer for 1 Yorkville is kicking them out as early as March 2015.