My opinion: they're not for everybody. Quality control has improved, as have the designs, with ongoing improvements or tweaks to existing models, and some very innovative new weapons. Years ago, it was really hit and miss; now it's mostly hit.
A lot of folks who are otherwise very good shooters simply can't shoot the K-T, and it may be that you'll end up being one of them.
One of my shooting buddies got a P3AT when they first came out, tried it for a while, claimed it was the biggest POS he'd ever owned, said you couldn't hit the broad side of a barn with it, and sold it for a loss. I let him try mine, and he couldn't hit the broad side of the barn with it, either. I took it and shot a modest 4" group at 20' as he stood there, firing rapidly. He looked stunned, as he would typically outshoot me with other guns.
I don't think it was the gun or the shooter, but some K-T models just don't fit some shooters: their gun's designs and some shooter's physiology just don't work together.
If you can try one out before you buy -- if you have a friend or know someone who shoots them.
Just added this:
There was an extensive discussion in the last week or two about the .32 acp round, and this link will tell you more than you'll ever want to hear about what it can, can't, and might do in a self-defense situation.
http://www.thehighroad.org/showthread.php?t=731066&highlight=.32+acp People who love the round (and .32 weapons) and those who are less enamored, participate.
(The P-32 is one of the more trouble-free and pleasant small guns to shoot, but you may want to investigate the effectiveness of the .32 acp round before you go in that direction. From such a short barrel, the round loses a lot of it's already-limited effectiveness. I think there are a number of OTHER discussion here on THIS forum, recently, on that subject, with a lot of people chiming in.)
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