I took it to the range today, and was very pleased.
I did forget to mention that I already have a Shield 9 v1.0 PC model. The new one with the laser is effective to greater distances than the one without. I was able to hold COM out to 20 yards, well beyond what I expect.
I did notice the new one shot just a bit snappier (as expected, the older PC model having a ported barrel) and sounded a little louder. I thought the one with the ported barrel would be louder.
The improved accuracy at distance was also expected. I see much better with both eyes focusing on the target than just one eye focusing on the front sight. That's why I got the laser.
The only problem is it won't fit in my favorite kydex belt holster. But, I have a IWB Sticky holster it fits, and a good excuse to visit the Gun Show next month.