I had no problems with chicks I purchased a year or two ago, and was very happy when my four new girls arrived 2 1/2 weeks ago - varieties I requested, and appeared to be in good health. Unfortunately, one of the chicks died overnight after 3 days (the buff Orpington), and another chick (Jersey Giant) appears to have a yolk-sac infection. Is doing well, and receiving oral antibiotics - keeping my fingers crossed that she continues to do well and recovers. 4/5 only due to loss of chick, which when you think about what they go through when only a day old, it is pretty amazing they do as well as they do - Heidi