I have two sussex hens that produce an abundance of eggs -one hen is broody and a good sitter sadly the other is not !!
These are wonderful birds, with good laying production, they lay about 240- 260 eggs a year.
They can be kept in a tight pen or they can roam freely.
We have both a light sussex cockerel and hens. The hens are lovely friendly birds and reasonable layers, the cockerel however is not something I would reccommend, we have had several light sussex cocks and all have been of a nasty temper trying to attack us despite being raised by us from chicks!
My girls, and now cockerel, are very beautiful, friendly birds and my cockerel is not very noisy. They have been laying well, even through the winter and have not had a days illness in the year I have had them. I would recommend this breed to beginners.
As pure breeds go they are good egg layers and have laid as well as my hybrids and through the winter. Mine isn't overly friendly, but I know other people have them that are a lot friendlier than mine.