Pros: Friendly, Smart, Unique, Good Layer, Not Messy!
Cons: Cant think of one (they even taste great)
Really entertaining to watch them grow up and they look different from other chickens most people know so its easy for others to understand the pet chicken idea. They lay very steady and mine have good sized eggs, nice white ones so anyone who doesn't know where eggs come from wont know the difference with these.
They are quite smart and will learn quickly, my Houdans learned to peck the back door to come inside from watching the dog scratch at it. Most important they really have unique personalities and if they get friendly with you it lasts for life. They will notice when someone or something is missing too, if we ever have a girl who goes broody or gets sick the rooster will pace along the door until we put her back. Even after 29 days the rooster was still looking for his broody girl and welcomed her back like nothing changed chicks and all.
That in mind there are always the special ones, but any breed makes a dunce or two every generation.
My favorite part is that although the crest will get beat up doing normal chicken things they are by far a clean breed. Compared to other standard breeds they shed much less dust, appear to be more poop conscious (less in the food etc.) and are always less messy when you pick them up. It's as if they know they are borderline house chickens and want to keep clean for those special days the door opens.
Get them, keep them, love them.
Best Chickens I have ever seen.