This breed is my favorite thus far. We have had Speckled Sussex sine we started raising chickens in 2014.
They are very docile towards other chickens unlike our Easter Eggers or Aracanas who are just plain bullies. They lay every day and through all seasons. They tend to be broodier than my other hens and did well raising their little ones. My only complain is they always fly out of the chicken lot when we are wanting them to stay in for whatever reason ( usually because we are gardening or planting grass seed.) However, I will say at least they also fly back in on their own and we never have to catch them.
