I have owned one for about a year and love it. It is tight and has great mid presence and a smooth high end. I live a few miles from Jim Bergantino's shop and was playing regularly on his development floor with a guy who works in the same building. I got to use a few different Bergantino cabs while I was there, including the CN112, CN212, AE212, and some heavy 410 beast. No doubt that a stack of 410s would have been the choice if I were joining Black Sabbath. The AE212 might have sounded a little less articulate than the CN212 if you were looking for a vintage warm tone with easy transport. The CN cabinets provide great note definition as well as a very smooth and musical response across the spectrum.
One day, I brought the Schroeder cabinet that I had been gigging for the previous several years and did an A/B with the CN212. No contest. My cabinet, that had been getting positive reviews from listeners for years, sounded like mud by comparison. Yeah, they're over $1000 for just a cabinet, but I'm very happy I paid the price.
I think Jim said something about getting the speakers from Italy. I don't know the details, but you should be able to call or email him and get an answer to any questions you might have. I recommend the cabinet, and the cover fits well in a way that doesn't have you fighting to get it on and off when you want to.
-bob