I believe the one he is getting might be a generation older than the current one. The newer versions run cooler than previous ones (I only bring it up given the heat concern). I currently have a unit that is less than a year old that I am selling for $5,000 (retail is $8,000). It was a customer trade-in when someone moved up to the Evolution 845. The BoX is an awesome unit but I just sold my last new unit today and it will take me a bit to replenish stock since Italy shuts down in August. I might be able to make something happen on one of the review models though. I do have a new in box Dueventi as well. All of these amps are $5,000 or under.
I was a Triode Corporation dealer until I picked up MastersounD. The Triode pieces are nice, but they were completely forgotten by clients the second they heard a MastersounD amp. Their transformers are world-class and done in-house, so they have an advantage that nobody else can replicate.
As far as customer satisfaction with MastersounD, each client I talk to loves them and most only sell theirs to move up the line. Technicians I have talked to have nothing but respect for their design and build quality as well.
I just love it when I allow other dealers on my site and they slam not only the brands I sell, but actually use and personally own in my home system. This is your first and only warning.