Been carrying one for deep concealment when working and wearing a suit. I've had no issues whatsoever, and thoroughly love mine. It's insanely accurate, has a great DA trigger, and hasn't had a hiccup in the ~500 rounds I've put through it. Unlike other pistols in it's category, the TCP is a joy to shoot, and has real sights. I painted the front one white with nail polish, which made it quite quick to acquire when taking aim.
I've noticed that mine gets begins to feel 'sluggish' cycling after 100 rounds in one sitting, but that hasn't caused any problems, and I simply clean it after each trip to the range where it shot a box or more. I'll never shoot more than 13 rounds out of it in the event of actually needing it, so that doesn't present a problem to me. If it were a service pistol I'd feel differently.
Great little pistol, and an outstanding value at the $200 shipped I bought it for.