I have a Glock 33 (357 SIG), Beretta Model 8357D Cougar 357 SIG and a Taurus 101 with a 357 SIG barrel.
All are good shooting guns.
I've only been shooting and reloading 357 SIG about a year and a half but it's become a favorite caliber.
I've loaded several thousand 357 SIG rounds (and several thousand others) this last year and I'm in the middle of loading about 3,000 more 357 SIG. Loaded a few hundred a few minutes ago.
The 357 SIG is as easy and fast to reload as any other pistol round.
I have a older Dillon reloading press. The press is a progressive with a four position shell holder.
Since the 357 SIG case is like a small rifle round and the sizing die is steel the case normally would have to be lubricated.
But to get around this all you have to do is have the first die a 40 S&W carbide sizing die. This sizes the case body.
Next die is the 357 SIG die, which sizes the case shoulder and neck.
The rest of the loading operation is the same as with any other straight wall pistol round.
SO.......loading the 357 SIG round is no more difficult, and takes the same time as loading 9mm, 45ACP, etc.
The cost is the about same, 100 grain to 125 grain 9mm bullets, small pistol primers, just a little more powder.
It is a powerful round, it's supposed to be, but it's not bad. My lady friends shoot my 357 SIG pistols. One likes them so well she is trying to talk me out of the Taurus. I don't really like the white grips but she does.