FWIW:
Recently I've purchased a NIB 5906 & 6906 from CDNN..
The 5906 is replacing my Walther P99/AS as my "home defense" weapon.. Not because the P99/AS is not an excellent pistol, but I'm old, vision not so hot, and a big fan of Crimson Trace Lasergrips and while none are available for the Walther, as set IS available for the 5906. Actually I ordered a set yesterday.
The 6906 was bought because it's really just a double-stack 3913, and I love the 3913. I bought a new 3913 in 1995 and my Son lusted after it to the point I've put it away for him. The 6906 will do cc duty when I can wear an outer garment for concealment..
Last week I stumbled on the info that CDNN has a few NIB 3913LS's and I've wanted one of those for a long time, so now I have one of those too... It's extremely slim, and like all 3rd generation Smiths should be absoutely reliable.
Reliability is JOB 1 for any self defense firearm I own.
I sold a Walther PPS to finance the LS... That might not make sense to Walther fans, but I hated the "glocklike" trigger/striker on the PPS. My first PPS was buggy w/ejector problems, and was replaced by the good folks at Smith & Wesson Customer Service. After i got a the new one I still could not warm up to the trigger, but that's a personal problem, not a fault of the pistol. Folks who like Glocks will love the PPS. I don't care for Glocks myself. Again just personal opinion, no offense to the zillions of Glockees..
Funny that in the past 13 years I started out on my compact 9mm pistol kick with a 3913, went through the Sigs/Glocks/H&K's/Walthers/Bersa's/KelTec's/Stars/ect. and I'm right back where I started, and happy as a clam to be here.
I've tried 'em all, (ok most of them), and as an overall package I think it's very hard to beat the 3rd generation Smith & Wesson pistols.
Go figure.
Best Wishes,
Jesse