Mellow Mushroom was in Charlotte several years ago but because of a franchise dispute, they were all pulled out of the market.
I literally jumped for joy when I learned they were coming back. Simply put, you will not find a better pizza period. The only detractor is that is very pricey for a pizza and the menu can be a bit overwhelming.
Their calzones are also top notch.
Another great thing about Mellow Mushroom is the variety of beer. I am sort of a beer snob and enjoy many craft beers. Mellow Mushroom always seems to have something I have not yet tried.
If you have never been, you need to go yesterday.