I've never had a problem getting in here, but I typically choose to go for lunch and not dinner. I have seen the line and waiting out the door at dinner hour, so you may have to call first and find out what your wait time will be. The restaurant is clean and well maintained, and laid out very well with plenty of room between tables and the tables are of a generous size. I've noticed some Mexican restaurants give you small tables, which can be difficult if eveyrone orders fajitas and there are plates all over the table. You won't have that problem at Frontera.
Their salsa that they give you when you are waiting for your food is really good. I've never remarked on that feature of any mexican restaurant, I don't know I've ever noticed it. But it was a roasted chipotle type of salsa that we could not get enough of.
Margaritas are basic, but choose rocks over the frozen kind because they are so much better.
It's located in a shopping center so you'll have plenty of parking options.
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