I am of the opinion that all of the single stack 9mm semi-auto pistols can be quite finicky. I have had a Taurus 709B for over 2 years now. It was an early model, and a trip back to Taurus was necessary to get a replacement ejector. It seems that the early models tended to have ejector problems. Taurus CS treated me well. Since that time the pistol has functioned flawlessly. I have put about 300 rounds downrange since then with no issues. About a year ago, I installed a Crimson Trace laser on it, I like the combination. The pistol is in my CCCW rotation, loaded with Rem GS, or Hornady CD.
I might have looked at the LC9, but by the time it was released, the teething issues of my 709 had been resolved. I like the fit, finish and feel of my 709.