Flacos is one of my favorite places to get food in the East Bay! I have a frequent buyers card even.
It's Mexican food and it's reasonably priced, especially compared with, say, Gracias Madre in San Francisco. I love their taquitos the best, which I think everyone agrees with (although, where I'm from, they call these "flautas" not "taquitos").
Buyer beware about one thing -- their hot salsa is REALLY REALLY hot. I mean, I'm a hot orderer. I like hot stuff and people always remark about my non-sensitivity to spiciness. That said, although I can eat their hot salsa, it's a bit too much for me, I prefer the mild. Most people I know could not hack it.Pros: vegan, taquitos