The broilers from Hoovers are awesome. We get 100 - 200 of them every year, and have for the last 10 years or so. They are the real deal. We have never had any problems with them. Great survival rate, great growth rate, etc. Well worth it and the meat has been wonderful! They deliver to the midwest so there is no shipping if you live near one of their drop off points. That is a great service they provide.
Their layers are a little more inconsistent. We got a group of EEs from them and they were colored beautifully and lay well, but have some issues with crooked toes, etc. The gold stars didn't seem very hearty and tend to get egg bound easily. I am not sure about the white rocks, australorps, etc. The prices can't be beat, that is for sure.
I also noticed that I tend to get more sex mixups with Hoovers. If I order straight rooster meat birds, I always get a dozen or so hens, and when I order layers, I always get some cockerels. They seem to have more mixups than McMurray or Ideal. I still say it is worth it though.