I bought a Classic in Super .38 a couple of years ago. So far, it's been flawless in function, and it's fun to shoot. It's a pretty good shooter, not a target-grade, but good enough for me.
I also have three SA 9mm pistols with "accessory" Super barrels, that are also quite good. I like the Super a lot. I load my own ammo for it, so it's roughly the same price as 9mm ammo (just an option). The only changes I've made to those pistols, are switching to steel firing pins on them all (Colt included), and switching from flat MS housings for arched housings, which I prefer. I went to steel firing pins for reliability purposes, some SP primers can be hard, and a steel firing pin is more reliable than the lightweight titanium FP Colt and SA use as OEM. If you only shoot factory ammo, it's not necessary to swap firing pins, but I would avoid Armscor Super ammo, as it caused "blanking" in my pistol (the very soft primer would shear off a disc and plug the firing pin tunnel, rendering the gun useless until you clean that out. Stick with PMC or domestic ammo, avoid the Armscor stuff.