I've used both the broiler finisher and the starter...results are seem good.I am wondering the same thing. I usually have been getting Dumor from Tractor Supply, which is an hour drive away. We have a local auto parts store that is now adding a lot of animal feeds (which is such a wonderful thing) so I don't have to drive an hour if we run out of chicken or duck food - But they only carry Prince brand. I haven't been able to find many reviews. I did read one thread on this site where somebody said their chickens LOVE the Prince food. I think Prince is more of a regional company (out of Wisconsin) so that may be why there aren't many reviews. I even tried googling them but I mostly came up with the company website. I guess I'll have to see how my hens like it.
I was unable to continue to get fresh Prince feed in the formula I wanted from my local distributor(long story).Just bought some organic 16% crumble for pullets. I'll let you know how it goes!