I own a 310 Night Guard, which is the 10mm/40 S&W version.
This is a Great concealed carry gun.
It has the excellent Cylinder & Slide Extreme Duty Rear Sight. As good as it gets for a carry gun.
XS 24/7 Tritium Front Sight. Again perfect for a carry handgun.
The gun is very light weight for a 2.5" N Frame. It carrys about like a 66 Snub, only lighter weight. I also have a 3" 625, and the 310NG carrys like it is smaller in size. This must be due to the very light weight.
The Night Guard is very accurate for a 2.5" revolver.
The trigger on mine is very good for a factory revolver.
No issues with function at all. The moon clips just drop in the SS Cylinder.
Problems with the Night Guard? You do not hear of many.
As far as shooting it goes. Recoil is not terrible with the factory rubber grips. Not a Powder Puff like a heavy all stainless steel 625 however. The felt recoil of my 310NG shooting Full House 10mm is about like a Steel K Frame shooting 125 grain 357 Magnum ammo.
Recoil of a 45acp should be quite a bit less than the 10mm. As long as you keep some soft rubber grips on it, (Like the Factory Grips that come on it) recoil should not be a show stopper. I have a nice set of compac checkered Walnut finger grooves on my 310NG. They sting a little, but they look good on it. I shot a 48 round Defensive Pistol Match yesterday. I shot my 64, 610, as well as my 310NG with 40 S&W ammo. My score with my S&W 64 was 81.81. That was the second highest score of the day only beaten by one CDP run. My 310NG score was 84.29. That was only 2.48 seconds behind my 64 score. As you can see the 310NG did just fine. The 2.5" barrel did not slow me down much either. I won't keep you guessing the 610 score was 83.04, third highest score of the day.
I think you will like it just fine.
Bob