Anyone have any experience with these? I have some experience with collies and Japanese spitz and would love one for my next dog. I can’t find too much about them online, but they seem intelligent/trainable, long lived and a little bit lower maintenance than a collie. Any info would be useful, especially if anyone knows if the long backs cause any health issues/problems with stairs and jumping (I think this can be a problem in corgis which look similar, and daschunds but haven’t seen it mentioned when researching Swedish vallhunds)