I had the same issue myself.
Back in Dec, I decided that after years apart from the .357 magnum, it was time to get back in the saddle.
When I arrived at the dealer, they had not only a 627 "pro", but also a 686 Plus 7-rd, and a 686 SSR 6 rd. I laid them all out, handled them all, and int he end, I chose the 627.
I know the 627 is a "larger" firearm, but it sure doesn't feel that way compared to the other two. The SSR weighs in at 38.5oz, the 686 Plus at 38.2, and the 627 at 40.7 oz.
I immediately dropped the Plus because I didn't want the 5" barrel. It then came down tot he 627 and the SSR. It didn't take long for me to side with the 627. The size of the thing coupled with the 8 round cylinder really stood it out from the SSR. To add to that, they were the exact same price.
Long story short, I got it home, noticed the barrel crown was ****, and sent it back to S&W for rework. A month later, I got it back, then it went over to my gunsmith for internal rework.
Quick story on that, the DA pull on the thing felt "off". When I took the pistol to my gunsmith, without even touching the thing, the first thing out of his mouth was "I've had to rework quite a few new S&W revolvers lately, every time it's the hand, it's out of timing and fighting the ratchet at the end of the DA pull."
He pulled my pistol out of the box, played with it a few times, and confirmed that to be the case. He handed it back, had me DA pull the trigger telling me to pay close attention to the last 50% of the travel, had me open the cylinder, fake the cylinder close, and pull the trigger again sans cylinder. Huge difference. The pull was consistent throughout the cycle with no ramp up at the end.
I had him rework it but not to the point where it couldn't fire factory loads. He also smoothed out the trigger face. The DA pull is now buttery smooth and the SA pull, nothing something I use all that often, it silly light.
I got it back (again), replaced the lousy front sight with a hi-viz (much, MUCH) better, and replaced those awful Hogue finger grove grips with some Hogue smooth grips:
S&W N Round Butt Rubber Conversion No Finger Grooves Monogrip | Hogue Inc.
Since then I've shot the snot out of the thing. I've had it to the range every week for the past 4 weeks straight. I couldn't be happier with the final product.