After several visits to Diego Pops, I think I can solidly give a 4-star "Yay! I'm a fan" Yelp review.
Margaritas are always tasty, food is always great. Their selection of tacos is good, although as an ex-vegetarian of almost 11 years, I do wish they had one more veggie choice besides the plantain. I've also had a burrito for lunch once; it was huge and chock full of goodness. The green chili chicken can't be beat for a taco/burrito filling, and I also recommend the crispy cod (I'm not the hugest fish fan, but it is tasty-fried goodness.)
I LOVE the ambiance here. The inside wallpaper/lighting/decor is so cute and makes me want to deck out my house in trendy-Mexican-tropical-abode-chic. Pineapple print walls, anyone? The patio has a great fireplace to sit by, with tons of twinkly lights.
Their sauce/salsa caddie is fun. If you order a chips and salsa appetizer, you can't beat a selection of house salsa, plus 6 (I think?!) extra choices!
All in all, a pretty glorious Old Town choice.