I ordered four 4 week old chicks in April. 2 BRs and 2 EEs. They arrived in two days. They seemed fine initially, but one BR began to have issues, and died quickly. Within a day, the other BR died. MM replaced the birds at no charge the next week. These were all fine. The birds I received were 5-6 week old. I would order from them again. Customer service was great.