I have been to firefly a few times and every time I am satisfied. The Manchego Mac and Cheese is AMAZING....as is the eggplant mannicotti and the Serrano ham chilled tapa.
Service was good with a bit of a wait but more than enough room to stand at the bar.
One word of warning, don't mix a pitcher of Sangria, with a gin and tonic, and a jack and coke. Bad idea.