Tasty Tacos at Leticia's

Leticia's  (on Gallatin Pike) has some of the most amazing tacos I've ever had. (Their health department score is 98!) The place doesn't look like a 5 star restaurant by any means - but the food speaks for itself. Try it. (They also have cokes with REAL sugar!!)  I can't seem to find anything about them online and I don't know the address. I think they cater mostly to Spanish speakers, so they are not necessarily advertising to the masses.