Chilly, i've only owned one whippet/greyhound (or Grew, to some) and looking back, knowing that time makes past dogs look better, i'd have to say, she was very good!!
Everything you are asking about the cross is a yes and i'll stick my neck out, from what i've seen and say that i'd take one over a pure whippet any day.
Lets be dead straight here and say that its always 'horses for courses' and it'd always be about what you want to run, the land you want to run it over and how you bond with your dogs?
So when getting any new dog these questions must be well mulled over BUT the bottom l