I got a golden 300 from metzer along with 9 other breeds, and she is pretty, friendly, and cute. She is also healthy. I don't know about laying yet, she is not quite old enough. I like them all except the name. When i am showing people my birds and naming the breeds "golden 300" sounds odd imo.
I have a white layer. She is friendly and 5.2 lbs. She just started laying a week ago or so ago and is now 24 weeks. Eggs are the size of a large/jumbo chicken egg. She is the boss of my flock but isn't mean to anyone, just in charge. I really like her and I got a layer because I wanted to have a really reliable layer since I got them for eggs/pets. I have a mixed flock.