I recall looking at a .357 Sig at a gun shop and thinking it was an odd little number. I couldn’t figure out the attraction of this new round, unlike the .40 S&W which has been very successful.
You can definitely tell the difference when firing the 357SIG. Out of my P229, it was pushing around 1300+ with 124gr Speer Gold Dots, IIRC. Loud and the recoil was very punchy. It would ring the hell out of a 50lb metal plate I had swinging from chains. Not very good for double taps, but it had penetration in spades.
Still, it was a pain to reload and the factory rounds were just as problematic with bullet setback. After a year, I installed a Bar-Sto .40SW barrel and swapped that out for carry. Finally sold the whole package to fund my Glock 19 and never looked back. The Glock is just the better carry platform - lighter, thinner, more compact. I never got any of the anti-9mm nonsense because the one-shot-stop percentages aren’t that different from .40SW or even .45ACP.