Deciding to eat at Mad Mex North Hills is a bit like saying your girlfriend/boyfriend is a "solid 4" and saying you're ok with that. There's nothing really wrong with this Mad Mex, yet nothing really outstanding either, and it wouldn't be so hard to improve it. You'll notice immediately that it's way too dark and that darkness has been an excuse for ongoing sloppiness for years. Decor that looks like a late 1970's dorm room, layers of stickers on the margarita machine that obviously a manager doesn't bother scolding servers about, and hidden grime at the bases of bar stools. "Well it's dark, we can't see it." Personally I had trouble seeing the menu. I carried it to the light by the bathrooms to read.
Ok, so the burrito comes, nothing very special. It's ok, but the taste doesn't bowl you over. It's big. Not much else memorable. They give you a free basket of chips at the bar, and actually that's probably more memorable than the burritos, they're fresh and warm. The margarita is... predictable. Bottled mix and a shot of tequila, Wide glass to make it look larger than it really is, salt rim.
Anyway, I know how good Mexican food can be, and lust for the real thing in Mexico, or the versions served in California and Texas, but this comes up short even by Pennsylvania standards, it's only slightly above what one would expect at a Eat'n-park ordering a burrito-combination plate. And there at least you could see the menu and the food.