S&W introduced these "Ultimate Carry" guns to try to get a revolver to appeal to the majority pistol shooters, with a a bunch of "features" of questionable value that a pistol shooter might identify with: ultra light trigger pull (with resulting weak trigger return, misfires and unreliable lockup), bizarre grips with a distinctly non-revolver grip angle, and tall "high-visibility" sights that are out of place on a small revolver. Whether you agree with the features or not, what's undeniable is that S&W did the same job of assembling and inspecting of these guns as they do with all their other J frames. In other words, horrific and shameful. This is not a premium offering in any sense of the word. It's all marketing buzz.
I finally bought one this past spring to evaluate my observations. The gun was an out-of-the-box QC disaster; I've noted it in other threads (canted barrel shroud, weak/faulty trigger return, rough/inconsistent DA pull, burred cylinder ratchets). Repaired it myself since S&W is incapable of doing a consistent quality revolver repair (again, based on experiences of the past 3 years).
A friend of mine - another decades-long revolver shooter - also purchased one. His was also defective and he returned to S&W for repair. It came back somewhat less defective.
There are many threads on these guns, both on this forum and others. Your chances of getting a good one are equal to your chances of getting a bad one. Most buyers have no idea what to expect from a properly made S&W revolver, so are oblivious to flaws that would have never left the factory even 5 years ago. Most buyers also hardly shoot their guns to any kind of standard, and so are also oblivious to issues, or blame their own shooting.
PS. Yes, the front sight is very snaggy, as is the rear sight. This is both in a holster and a pocket. They are too tall and squarish on the rear edge for what is supposed to be a pocket/deep cover concealed hammer revolver. Most existing J frame holsters will not fit the 432UC properly (that is cover the trigger) without binding or snagging - both leather and kydex. I found a leather one that I modified to fit.
PPS. I've done quite a bit of reloading for .32 H&R Magnum in various guns. At the pressure limit for the cartridge (21,000 cup), you can achieve ~1050-1100 fps with a 100 grain bullet in a 1.9" barrel, using Lil'Gun. That load is definitely not pleasant to fire in a 14 oz J frame. Anything more that that is going to be over SAAMI spec and not recommend in an airweight .32 J frame, for a host of reasons including that the cylinder bolt notches (weakest point) are directly over the chambers. Most people buy a .32 defensive revolver for reduced recoil so I see little point in firing mini nukes out of it. The Federal 95 grain JHP and Hornady 80 grain FTX factory loads (both about 975 fps in the 432 UC) have lighter recoil than most .38 Special loads and penetrate well enough and expand.
PPPS. There is a thread on another forum - with pics - about an owner of a 632 UC who blew his gun apart with a handload. It was not a squib but some kind of inadvertant over-pressure situation... which seemed to me to be difficult to achieve in this cartridge due to capacities, proof limits and the assumed material strengths. After seeing how his cylinder blew apart, I question the material standards in these guns, and would be hesitant to fire anything other than standard pressure loads. Certainly not any Buffalo Bore Boutique Bombs.
Don't mean to be a debbie downer, but it's well known that S&W continues to have serious problems with consistent quality revolver production. Don't order one sight unseen and bring someone along who understands S&W revolvers to evaluate it.