I am looking at a puppy at Kolenda Kennels, in Dorr, MI. We have read all the threads about them, and noticed there were a lot of PMs suggesting negative reviews. We visited and agree with the puppy mill feeling and the heavy sales pitch. That said, the lineage is great. I would love to hear feedback if you have a Kolenda dog and particularly if Playboy was the father. We are very concerned about genetic disorders and temperament. We've had one perfect GSD with a genetic disorder and then we made the mistake of trying to save some money on the next one and that one was a monster. Soo, pretty nervous about making the right decision.