Pros: So tiny! So cute!
Cons: Soooo tiny!
I have never had these but thought I would write about my experience anyway. My neighbor has a flock and they are the cutest little things! They look so pretty wandering about in her very nicely landscaped yard, just like "lawn ornaments," adorable really.
I have heard that hers do go broody quite often, and at least one of the hens has successfully raised offspring. She tells me they lay many tiny eggs for her.
She might be selling off her flock, and while I considered adding to mine, their very small size is too much of a vulnerability for me. The majority of my chickens are LF (mixed breeds, but all living together) and I have dogs and cats too.