Goldlines are not actually a breed but a hybrid. They are one of a number of labels under which some hatcheries market their Red Sex Links and they are egg laying machines, consistently churning out more than 300 large brown eggs per hen per year. If egg production is a high priority, another true breed I would suggest are Australorps which are extremely hardy, calm and gentle (my children and granddaughter made lap pets of them), and excellent layers of large, brown eggs.
goldlines i have 3 myself. They are brilliant layers for the first year in the second they slow down.They're battery hens so after the first year they kill them or sell them as ex-battery hens!!
sometimes they lay twice a day. i am not so sure if they are good for meat though but they're brill for eggs!!