I have seen several of the p45 in used cases. This is relatively a new gun. I have heard some pretty negative impressions. I do not think it is a question of relaibility or longevity, or durability. I think it is just not a good platform for .45 yet. I have handled the p9. It feels like it is made for your hand. I have a friend who is a diehard 1911 man and he thought well of the p9's feel. The triggers are very reminiscent of the old double action revolvers, very smooth. If you are looking for a small .45 try the g36 or g30, from GLOCK. I have heard more favorable impressions from the g30 though.