I'll jump in with my comments on nano.
Not yet totally bashing it but mine after todays first range session is a disappointment. FTEs. Winchester 147gr efmj had the most issue. 8rd mag is uncomfortable and its with this mag I had issues, the 6rd mag the gun had no issues. Nonetheless I'm hesitant to say that the nano is gtg. I need to maybe see if it breaks in a little bit and go from there. I still want to see how much of the problems are because of the 8rd mag vs the 6rd mag. But after a while since I hate the 8rdr, I'll concentrate on seeing how reliable it is with just the 6rd. For all I care I'd prefer to just carry 2 spare 6rd mags rather than one 8rd mag. I grip the nano much more comfortably with the 6rdr than I do the 8rd. Maybe somebody will make a better base extension design for the 8rd mag because the beretta one is goofy as hell. Trigger so far is great. Sights are clear, gun is accurate as hell. It sucks that they though it neat to put grub screws in the sight for user adjustment! Folks if you have a friendly local gunsmith they'll adjust your sights for you for not that much money, or nothing at all if they adjust them at the same place that you do your range practice! That sight setup is crap. If I decide this gun works well enough after launching a lot of both practice and defense ammo and plan to eventually carry, I'll get real sights installed on it. I like the nano enough to want to see through the testing but like I said, not confident about it as of now, but honestly too early to tell. I've heard a few people say their's is trusted now but it needed a break-in period. There have been problems with the 938 and extraction, but its probably not as bad as the reports with the nanos. If you don't mind the long DAO P250, the P250SC is fantastic from my brother's experience. Not a single hiccup from day one out-of-box! Some cheap ball ammo might've needed re-strike at times but very very rarely. If you don't mind a larger, heavier though quite IWB concealable, the P239 is a no-brainer, no break-in there, that will be fantastic as well!