You have to make sure the wheat berries are absolutely free of small stones as they can ruin the blades of the mill.
And you have to grind it fine enough. I always set it for finest. It takes longer but makes better bread.
Have ear protection on hand. They can be loud.
Cleaning them is tedious, but it's the price you pay.
Homemade bread made with fresh milled flour is awesome. I like the hard white wheats the best. I would either get Golden Grain or Prairie God. It's not as heavy and dark as the red wheats.
What about hand mills?