The PT111 has a tough trigger pull. Also quirky to reassemble.
I bought one a few years ago that would jam when reassembled. The slide would be stuck solid halfway on the receiver. Sent it back three times to Taurus. They would reassemble it but claim nothing wrong with it. Never got to fire it and fortunately the dealer took it back.
Sometimes, for fun, when I see a Pt111 at a show I ask the dealer to take it down and put it back together. Hours later he'll still be struggling with it.
Before you buy one, have the dealer take it apart and put it back together in front of you. It's a nice looking pistol and carry size, but I hope Taurus will eventually get the manufacturing snafus fixed.