I recently acquired an MR73.
I am pleased with it. I have not read a single negative comment from anyone who owns one. I have read a significant number of comments from folks not owning one questioning the quality & value of the Manurhin.
Mine did not come with the rubber Trausch grips. So I can not comment on them. You will see the Nill grips mine came equipped with in the below picture.
The price of high quality revolvers, including S&W and Colts, have gone up significantly over the last few years. Try to buy any of them in excellent condition for under a couple of thousand or more these days. I have an unfired Model 29 (no dash) with Coke stocks, presentation box with tools which would likely sell for over 3 grand. Then there are several Triple Locks in my accumulation. I will not go any further. I consider my recent acquired MR73 the best in my accumulation of revolvers.
My understanding is Champuis Armes only produces 400 MR73's each year. I suspect Beretta may end up having difficulty keeping up with the orders they receive. We shall see.