I met a couple of Dutch Shepherds this summer, both stunning looking dogs but they weren't the most trustworthy. For example Arson, the one that I spent the most time around had to have a ball or toy in her mouth at all times when she was out for a walk with other dogs just to ensure that her mouth was busy.

From what I understand from one of the owners who also does a fair bit of work with other dutch shepherds besides her own and from a friend of mine who has been in dogs for quite a while the Dutch Shepherds that have been breed in North America tend to be a bit more aggresive and not as "pleasent" to have around. My understanding from these people is that it's due to the fact that the Dutch Sheperds are mainly being breed to be police dogs and not peoples pets, so they focus more on the drive then they do on the temperment.

A friend of mine was just over in italy last month and said that she met the nicest Dutch Shepherd she's ever seen. One that had the drive and a wonderful temperment.

That's about all I know about the breed really, so it's mainly just a little bit of time spent with some and then second hand info.