With a rash of Mexican and Latin-inspired restaurants invading Boston in recent months, there’s finally some competition in this category. But sometimes shiny and new can feel cold or corporate. And a see-and-be-seen scene doesn’t mesh so well with oozy plates of homemade enchiladas verdes and tamales. So let the cool kids have their herb-infused mezcaltinis for now. Until the hype dies down, we’ll be at this homey little spot in a Back Bay alley, downing sangria and ceviche with a smile.