Any Faverolles Owners out there? Breed help!

Hey everyone!

If you've seen my other posts, I am quite torn with which breeds to get when I start my *first* flock this spring. Though I originally wanted a good laying bird (was thinking Buff Orps, Australorps, and RIR), I am in love with Faverolles! I've been advised not to mix them with breeds with stronger personalities though. So now, it's going through my head - "Faverolles-only flock?"

My questions are for you Fav owners out there!
How well do they lay?
Do they really lay through the winter?
How winter-hardy are they?
Are Fav's as sweet as they say?
If you've mixed them with any other breeds, do they end up the under-dog and how do they do with your mixed flock?

Thanks guys!