I think the 3rd gen S&W 3913 and 3914 are great, with the TSW versions being the best, the perfect semi-auto. The beefier and what appears to be tighter fit on the slide rails seem to provide a higher level of accuracy on the TSW variants, and the single stack provides for good ergonomics and comfortable range sessions.

I transitioned away from them to some of the so popular plastic frame semi-autos, but have found my way back.

Just my $.02