Last night I tried dinner at the new Mexican & Puerto Rican restaurant, El Coqui Mexicano, and it was like being welcomed into the owners/employee's home! They are beyond friendly, the prices are more than reasonable, and the food... simply excellent and authentic. I cannot wait to go back! The only downside is they don't have their credit card machine up and running as of yet. Even more fun it the alcohol is BYOB. They encourage it, I would even invite them to join you. I cannot emphasize how warm and welcoming this place is. Finally, some great Mexican (and Puerto Rican) cuisine near downtown.
Oh! It's on the corner of Washington and Bumby, behind the new used Bookstore, The Book Worm.