I had a 315, a 386, and a 327. All very nice guns, the 315 probably being the most practical of the three due to size. I didn't have any issues with the scandium frames or even the locks (didn't like them but they can be disabled or removed), the guns functioned perfectly, and were plenty accurate. I found that I just didn't carry them that much, even though the light weight made carrying easy, the bulk of an L or N frame revolver and speed loaders in anything but a duty rig is a pain for me and it's actually the way the reloads stick out off your belt more than the gun itself. I prefer to carry 1911s, in spite of the extra weight, because they are so flat, as are the mags, much more comfortable to carry and much easier to conceal.
I think that if someone is dedicated to carrying a big snubby they can't do much better than one of the L or N frame NightGuards, but it takes more thought and effort to do it right than carrying most autos.