You just knew I had to chime in with my opinion, didn't you?
First, S&W makes good stuff.
I don't know anything specific about the 910. I do have a friend that bought a similar 9mm from them, but can't remember which model. He had some feeding problems, but I don't think he ever followed up to investigate the cause of the problem. It could have just been a bad magazine. He was also a first time gun owner and may not have been gripping the gun properly.
Aside from reliability, you already have the most important part nailed down...
I tried out a S&W 910 and it just fit perfectly into my hand. I don't know what it was, but it just seemed right.
That is really important.
Make sure it is rated for +P ammo before using any.
I myself have an old model 39 which is the original handgun in that line. It's a single stack 9mm with the manual safety decocker mounted on the slide. The 39 is a good gun, and the 910 and it's cousins probably fall into that vein.
The trigger is TDA (DA/SA) so you will have a heavier first shot pull than with subsequent shots, unless you cock the hammer first. A large part of the industry is getting away from this mode of operation in preference of DAO type functioning with lighter than traditional triggers. Nothing wrong with either one, just understand how your gun works and how it compares to others so that you get what you want.
This is something to think about...
Almost all S&W semiautos have magazine disconnect safeties (I think all except their new 1911, which has a warning to that effect because people know to expect a mag disc safety on a S&W). This can be a good thing for safety since it will disable the gun in the event the magazine is removed. So, even if you goof up and leave a round in the chamber accidentally when removing the mag for storage, the gun will not fire even if the manual safety is off and the trigger is pulled.
This feature is also a favorite of some police agencies because an officer who is fighting somebody for control of his gun may be able to dump the mag before his weapon is taken away and thereby 'disarm' his attacker before he can shoot the officer. The officer can then continue to wrestle without concern for the gun, or draw his backup weapon. If he is then able to regain control of his primary gun, which often happens shortly after the bad guy drops the gun becasue it won't work, all he has to do is pop in a spare mag and he's up and running again.
The downside to having a feature that can automatically disable your weapon is that
it can automatically disable your weapon.
If that mag comes out of the gun in a fight because you accidentally bumped the magazine release button or fumbled a reload, you are hosed even if you have a round in the chamber, safety off, gun pointed at the bad guy, enough time to get a shot off, and you pull the trigger. Not a happy turn of events.
It would be tragically ironic for your last thoughts toinvolvetrying to figure out why your trusted sidearm didn't do anything when you needed it to most.As you can probably guess, my 39 has been retired to the safe for target practice, plinking, and teaching.
Just some things you shouldthink aboutbefore buying a gun with this feature for defense.
-Bulz