Well I have a mix...Yorkshire Terrier/Toy Poodle

so far I have been extremely lucky..

EX:
Yorkies are very hard to house break...Poodles are very easy..and Gracie was a piece of cake to housebreak. So thankfully she got the poodle part in that!

Both breeds are super smart with learning new things and I am not exaggerating...Gracie can learn a trick in less than 30 minutes.
And her recall is amazing. She remembers everything.

Both breeds are very loyal....she is super loyal

Both breeds tend to be barkers...and Gracie ONLY barks outside...she never barks in the house..lucked out there! She could care less if someone knocks on the door...she just wants to them to hold her once they come in!

Yorkies are very fast runners and love to run at full speed...she certainly does that..

It "seems" that she got the best of both breeds...I like to think so anyway...