I have visited this Taco Mac as well as the Taco Mac near South Park serveral times.  This was by far the worst service experience I have had to date.   I believe that several of the other reviewers are correct that it has a lot to do with the proximety to UNCC.   If your party has more than four people, there are better options in the area.  The beer selection is awesome, riveling only the flying saucer in the area.  The food is mediocre at best, incidently it seems better and bigger portions at the south Charlotte location.  Overall, avoid the place if you can.