I've been to this place a couple of times, once for lunch and once for dinner. I really like their business model. They offer mexican food made with all fresh ingredients.
The prices are very reasonable and chips and salsa are free, like most other Mexican or southwest places in town. The difference at La Salsa is that they have a salsa bar with many different types of salsa and it's self serve. It's a nice change of pace to try different salsa's while you wait for your food.
Both times I've been there, the food was very good and it was presented very nicely as well. The fish tacos are very good!
They also have a bar and TVs for a happy hour atmosphere, but it's not a huge place, so it can get somewhat loud when it's busy.
Give it a try and see what you think...