I bought one over the summer. I have about 1K rounds through it and now it’s a safe queen. The gun is an amazing piece of engineering and a great show piece but not very practical for any of my needs. Would I buy it again? Absolutely, but I also prefer my 1911s to the Mark 23 any day of the week. I find them much more comfortable to shoot.
If you want one, pick it up. It’s not something you see every day and I’m glad to have one to pass on to my son one day.