I can't see the point. it's not much faster than the +P 9mm and not as versatile than the 10mm.

Underwood Ammo has a 1600 FPS 10mm, a 1300 FPS 9mm and a 1500 FPS .40 S&W. I don't see where the .357 SIG offers anything you can't get in other calibers, except more expensive ammo.

However, if you like it, shoot it and enjoy it. As in many things, there are a lot of different opinions on the round.