Yeah, I have an SP101 3" barrel in .357 Mag. Even though I got a big ol' Taurus Raging Bull that's bigger and badder, something about the Ruger just seems.....solid to me. I can't explain it. It just feels indestructable and I find myself asking which I'd take into a battlefield (well, I'd take an automatic weapon of some kind but that's a different story), and even though the Bull is in .44 Mag and eats the recoil to almost nothing, I find myself saying I'd probably take the SP because it just feels more dependable and I've never ever heard of ANYONE having problems with them.
I think its about a perfect as a concealable small frame handgun will ever get. If some has/will make a better gun with the same caliber at the same size, I'd pay money just to see it. Its truly a gem that I will treasure always.