Single stack 9mm in a subcompact form seems to be the big craze these days, and there are many choices out there. I too have considered it, as m G26 seems a little chunky for its size (I have no issues with my 19's or 17's)
I've checked out and handled some recently considering my options...... the new Beretta Nano, KT PF9, even the mighty Walther PPS 9. A few of these really feel great and fit my hand well and the trigger action feels good. BUT I am not an impulsive gun-buyer so I start researching and doing my homework.
I have to say that I'm starting to get discouraged, as to the poor rap these micro single stack thin 9's seem to get. One has this issue, the other has that issue, another one has major FTE issues, and so on...
Is it possible that maybe trying to make a pistol smaller than what the cartridge can do to it may be too much for such a small form factor can handle?
I'm close to giving up on the search for a reliable small single stack and just keep the larger frame pistols and call it a day.....
The biggest problem with tiny concealed carry gun reliability is the shooter. Lightweight gun + stiff recoil springs + small grip area = even a .380 is pretty snappy. You have to HANG ON to that thing to keep it happy.
My PF9 has ~1k rounds through it. 100 percent reliable for me. I've had others shoot it who couldn't hold onto it well enough for it to cycle properly, but this hasn't been an issue for me.
Edit: To answer your question, yes mine has been worth it. Same outline as my Glock, almost half as thick. I have no waist, so thin helps me conceal.