I didn't dare eat it. Had another one start six foot from it about half that size, same thing covered with slugs. I put a thick layer of wood ashes around it that killed a bunch in their attempt to get to it, a few still did. Left them for 'seed' maybe I'll have more next yr. It's in a area I don't mow often, and shaded by a big tree so doesn't grow grass/weeds much, might get more?I try to avoid buggy shrooms. I worry it might prematurely age the shroom.
BTW that is one huge puffball. Was it all white and marshmellow like inside?