Rocky Beginnings
The 59 and 39 pistols had all sorts of problems when they were first released. I remember buying a magazine, which I still have (see photo below), where one of the teasers on the cover stated: "Why a $49 Raven .25 is Better than a $220 S&W 9mm Model 59." The answer was, because the $49 Raven worked, and the Smiths did not. Apparently this was just prior to Smith fixing the problem, but by that time the reputations of the guns had declined drastically.
But when they did get the guns working, they were excellent. I really like the 659s, 5906s and 639s. The 639, especially, is a sexy pistol, but I never was able to find one back in the days I was buying.
I'd like to know if you've tried to shoot jacketed hollow points and, if so, whether you've had any problems. The later guns tended to eat anything, and the 645 (the .45ACP version) actually fed empty cartridges from a magazine. And in the military tests, the Beretta 92 malfunctioned on an average of once every 2,000 rounds. S&W's 459 (the aluminum 9mm) came in second, malfunctioning on an average of every 950 rounds. That's not bad—certainly something you could comfortably bet your life on.
I'm sorry to see that S&W has abandoned its steel guns. People were known to engrave the 59s, 39s, 559s, 659s, 639s, etc., but plastic guns aren't likely to be decorated, unless, of course, your 10-year old decides to try out his wood burning kit on your Glock!
.