Well, the price has shot up recently. I saw one going for over $2000.00. Yours is a later model, and I believe it may be somewhat improved over the earlier ones. Mine is #222xxxx, quite a bit older, and has very poor contrast wide open. It's much better when stopped down even a little bit. Yours may be improved. So I think I would take a few shots with it, and if it performs well, and you didn't pay too much, I would not be too quick to send it back. If you paid top dollar for it, it ought to be as represented, and I would send it back or get an adjustment.
May the light be with you.