One time I gave Los Mariachis a chance while dining with a friend. Service from the kids was terrible. Food was simply awful or nondescript. The lack of atmosphere was indicative of the overall lack of quality/effort.
Accidentally, I ate Los Mariachis a second time as I had forgotten my horrible first experience (yep, it was *that* bad). After ordering, my memory was triggered by the poor service and cheap surroundings. Ultimately, the food came -- it took one look to confirm just how bad this place was.
Obviously, there will NOT be a third time. Do your self a favor and skip it.
Pros: Convenient location
Cons: Bad food, Poor service, No atmosphere