1) There is no hosel so you can't shank them.
2) The rounded sole makes them easier to hit from awkward sidehill lies, and you can get away with slight fat shots because there is no sharp leading edge to dig in. Also you don't need them custom fitted for lie.
3) Unlike irons, they don't turn over when trying to hit from rough.
4) They usually hit the ball 10 yards further than the equivalent iron.
What is there not to like?
2) The rounded sole makes them easier to hit from awkward sidehill lies, and you can get away with slight fat shots because there is no sharp leading edge to dig in. Also you don't need them custom fitted for lie.
3) Unlike irons, they don't turn over when trying to hit from rough.
4) They usually hit the ball 10 yards further than the equivalent iron.
What is there not to like?