I briefly owned a 9mm Millenium Pro in 9mm. Accuracy was decent, with only a couple hundered rounds fired, reliability was 100%. Two things I did not like. First the trigger pull fo me was too light for a deep concealment pistol. This I could have lived with. second, the grip angle and size was all wrong for me. You may find one to be perfect. I'd suggest trying one before buying, if I followed my own advice I'd have saved myself thousands of dollars over the past 30 years.
Got a stainless Millenium Pro 9mm myself. Accurate but I have to agree with the demented one on the grip angle not seeming to be right... But hey that is my opinion on it. Mine also didn't like Monarch steelcased ammo.