Hi!
From reading here, it does sound like all yorkies are different. I'm so lucky that I ended up with two little girls who love everyone, are never nervous or aggressive, willingly put up with baths and brushing, don't mind being dressed, etc.
But they have their stinky little moments as well!

And as I type, they are in there having a mad wrestling match. I have a feeling that no matter WHAT qualities your yorkie does/doesn't have, you still find enough positive to think they're just about "perfect".
Again....that just comes from reading the board here.