We ordered 7 chicks. They arrived the day after shipping. They had sent 8, but one was DOA. The others have turned out to be 2 buff brahmas, one light brahma, a white rock, a barred rock, a RIR, and an EE. Our RIR was so tiny, I thought she was a bantam. She is now catching up but still a bit smaller. I'm worried our light brahma might be a rooster since s/he is soooo slow to feather compared to the rest. our EE has a cross-beak.
So, all in all... most of our birds seem healthy at 7 weeks. Not totally sure I got all pullets, we shall see. The cross-beak is a genetic flaw, so I do wonder if they are breeding birds with an obvious beak deformity.