First, let me say as a native Charlottean I've been eating at the Open Kitchen (and formerly Gus's 49'er) since the 60's and have really enjoyed the food over the decades.
With that said, I've also known over the years they don't make their own pizza crust using a pre-made suspected frozen crust. But since the ingredients were always good quality it was usually edible.
Stopped by today and ordered the 16" Mama K Supreme. I'm sorry to say it was the absolute worst pizza I've ever had - including cheap frozen grocery store pizzas. Besides the sparse tasteless ingredients, the crust had a pita bread like texture and tasted like cardboard.
I know it's hard to teach an old dog new tricks but if the owners read this ... PLEASE stop using the cheap frozen pizza crust and start making your own. I'll never fully understand why an Italian restaurant of this caliber would do this, especially with the opportunities to boost their bottom line by selling a better quality product.