To do it all over again I would have gotten the M&P 40 and then the conversion barrel. That way you have the ability to shoot both calibers without the hardware of 2 guns.
I ALMOST went that direction. But then I tried one with the smallest back strap and it was "OK"...but not quite as good a fit as the XDms with the smallest back piece.
Of course if you don't have crazy small hands like me then this is of no concern.
If you haven't fired the M&P I recommend you do so before you buy it. There seems to be a love hate thing with the trigger. Personally I like it much better than the Glock or XD triggers. I liked it better out of the box, and it improved dramatically with some aftermarket parts. It just feels better on my finger. I love all 3 of mine, and will be looking for the 45 in the near future.
Some people find it gritty and say it has an odd feel.
Other than that it's a little more sensitive than a Glock in the assembly/disassembly and oil needs. But it is a fine weapon if you like the balance grip and trigger it's worth taking the extra time and care with it, it may just save your life.
I am a M&P fan big time, but when making my choice I had traded into a XD in 40 and I went and borrowed a glock so at that one time I had all three.
I can't do glocks they just are like holding a 2x2 and just not my cup of tea, I was not accurate with it due to lack of positive grip.
The xd is a fine pistol and the guy I traded it off to actually can shoot the xd better than the M&P he owns (he has kind of sausage fingers)
I settled on the M&P and really get along with them I have 2 one for carry and one for matches the carry has just the apex sear the match one has the complete sear and spring kit
If I could find a 40 Pro I would buy it but for combat and UPSA the M&P is plenty accurate enough.
If I was really wanting to game up on upsa production class I would get a M&P in 9 and get light springs for it and shoot really really light 9's but thats not practical for self defense its just gaming.
In conclusion I can't think of a single reason to not buy the M&P 40 or the Pro
Daily carrier of a .40c and I love it. Have plans of getting the 40L in the near future. If it feels comfortable to you, theres no reason you shouldn't.
I know that the front sight dot has a tendency to fall off. That can be cheaply and easily remedied though. That's all I can think of. I thought I was going to try to pick up a Ruger SR1911 but I've managed to pull a complete 180 and now I'm researching the M&P series as well. The best solution to my dilemma would be to buy both.
I cant think of a single thing i dont like about my M&P 40, i've shot over 1500 rounds through it flawlessly. My only recomendation would be to get the M&P 40 PRO if you can, it has a better trigger pull and a little longer barrel
If you buy an M&P and you shoot it and dont like the trigger give apex a call and get the DAEK and that will put the trigger problems to rest. The main thing i don't like on a stock M&P is the sights. The 3 white dots just aren't the best. As for the striker issue they have had in the past i will just say both of my M&P 9mm have the old type strikers in them. I called S&W and they sent me the new redesigned striker for no charge at all. I will not change the stock strikers until i have or notice a problem. I don't think you can go wrong with any M&P you choose to buy, I have a 9L and a full size 9. The 9L is my USPSA gun and my Full size is a nightstand gun. Hope this helps ya