The Ruger LC9 is a good gun, as I'm sure your research has shown. My wife had been looking for a long time at the Taurus 709 Slim. As soon as the LC9 came out, we went to a gun shop to do a side-by-side comparison. She instantly liked the Ruger more than the Taurus. I asked her to wait on her decision since it was new.
Around that same time, Ruger issued a recall. Over the next 3-6 months I ran into report after report of LC9 owners who had problems with various malfunctions.
Much like brickler said, the first generation of almost anything ever produced will have its problems.
The more we compared the Ruger LC9 and Taurus 709 Slim, the more she was convinced to go with the Taurus. What more can I say about letting a woman go with her own intuition...I've been married for 22 years for a reason.
Personally, I have a PT-145, which is similar to the PT-111 that you're also considering. I've put it through all the paces to ensure that it would be reliable for me as an every day carry (EDC) weapon, particularly in the Summer.
Taurus is a reliable brand these days as much as any other. Consider brickler's advice as another Taurus owner with a good experience. It's worth some more research on your part to consider it as an alternative to the Ruger. For your first weapon, you owe it to yourself to compare the two. I carry either the Taurus PT-145 or a 40 S&W from another brand. If I was choosing a 9mm for myself, I would choose the Taurus 709 Slim.
One other thing I'll say is that the Taurus 709 Slim is 2 oz. heavier than the Ruger, and from everything I've both experienced and read, the heavier weapon (once you get used to the carry weight) is better for recoil and multiple shots. Otherwise, they're very similar.
Good luck with you decision!