I recently went to Zocalo for the second time during the dinner service. This place does some things really well and other things need quite a bit of improvement. For example, the guacamole sampler is delicious; the calamari was very dry and chewy. I tasted and enjoyed the chicken quesadilla, as well as the enchilada tinga poblano. The service was a bit slow, and the waiters made very silly drink mistakes; however, the waitstaff was pleasant and friendly.