I bought a new M&P 9, full sized, no mag or manual safety, came with three 17rd mags, cost $350. Overall I like the gun a lot, but I've been XD/XDm for a long time. The thing I'm not used to is having to break in the slide stop and starting with a creaky trigger. Also, loading a mag causing the slide to fall automatically. My cousin and I both bought one, and neither of us could release the slide with the stop. It wouldn't budge, even trying from both sides at once, on either pistol. I had to work mine, letting some pressure off the slide to use the stop, many times. I can at least use that now, but it's still difficult. Second issue, the slide falls when I slap a mag in? That just seems like a BAD thing. There's no consistency. I never really know when it will close the slide itself, or not. And I guess if you slam a mag in, it might not pic up a round. Great... now I always have to brass check it... I still love the gun, it shot well. I can even break in the slide stop. But that issue with the slide releasing itself is rather hard to forgive. Maybe even more than a magazine safety (disconnect).