I didn't have much luck with it,
and have heard of some serious injuries.
I have also heard of some problem pairings doing very well with it.
Given time most any two chins can be put together, sometimes it just means giving these two time alone.
Most chins would rather have any buddy than no buddy at all.
As some are quite content just hearing others, I have had to isolate some parings from the rest.
But hey what ever works for you
the chinster has a great site. I have been using it for years.