Don't have a TCP, but do have a P3AT so you can figure out what side of the fence I landed on.
First, I've had zero problems with the KT. It isn't a range gun by any means, but I usually run a mag or two through it whenever I get the chance. After that, I'm done. Suffice it to say it's a snappy little devil. It's been reliable and disappears into my pocket, which is all I ask for. And from what I've heard, if I ever did have problems with it, the manufacturer pretty much stands behind them and is pretty easy to work with. Hopefully I'll never have to put that to the test.
As for Taurus, I have one I bought twenty some years ago on the advice of a LGS owner who told me how great it was to have the Taurus lifetime warranty. What he failed to mention is you have to ship it to them, which costs almost as much as the gun is worth now. Taurus will not send you even minor repair parts. You have to send it back to them. So even though I've had some problems with it, it just isn't worth shipping it back to them. Taurus isn't high on my list.