I had a new M&P .40 . so I took it out for a range test on Memorial day weekend,,, I am normally OCD. about cleaning, and lubeing my weapons. but I wanted to use this as a house gun, and decided to see how good it was. So I did NOT clean it and I shot it all summer. only wiping down the out side. I finished my test last weekend, Labor day, Over the course of the summer i experienced 0 failures of any type. it ate every type of ammo I put in it, and NEVER failed even when dirty... I just now cleaned it. Yep I would say it is worth of being a new house pistol. Full sized M&P.