I've just looked after my DBro's (3 years old - dog, not DBro
)for a fortnight - fortunately he gets along well with my lab.
Pros:
Nice size - easy to bath in the utility room sink when he rolled in fox poo.
This particular chap is very "cheerful" - always up for a play.
Cons:
Shed like a bastard (as does my lab!) My house is now covered not only in black straight hair but also in fine, curly black hair. My hoover hates me.
Extremely high energy. Could walk/play all day, unlike my lab who likes to sleep for a couple of hours after a long walk.
Barks in excitement at ... well ... everything!
Quite "needy" - always wants to be with someone. Sat patiently in front of me when I went to the loo
if I didn't close the door quickly enough. Otherwise, just waited, equally patiently, outside the door ... with my lab!
Not very happy with the way in which my DBro procured the dog - not enough checks on the breeder, for my liking, but he is a sweet dog and very well loved and cared for (though not quite as well trained as my lab who has been trained to within an inch of his life by DH!).
To be honest, I don't think anyone can EVER know exactly what they're going to get in a dog. Like people, they're all different.