They sure are! we would have one now but they aren’t suited for townhouse living and need more exercise that we can provide. There have been reports here...Wheeling Downs is nearby...where people have adopted them and neglected them. Chaining them where they can start to run but when they get up to speed the leash runs out.
Also people walking them or keeping them outside in Western Pennsylvania Winters.
If we decide to go back to a house with a fairly large yard we intend to try for one.