They are pretty trees and give shade. I have over 3dz mature Walnut trees.I'm close enough to there too Still worth it if they are placed well. It feels good to do things like this for whoever comes after us on the land. And they are pretty. These are two of mine.
It's a challenge to grow a garden because of the toxins in the roots. The roots go out at least as tall as the tree. I gave up picking up walnuts when it got to be 4 wheel barrows every day for a month. I mow them up and the poultry like to eat the meats and worms that get in the hulls.
I keep telling myself that they are better than Ash. Almost all the ash have died from longhorn beetle