I like mine too. I've had some QC problems when I bought her. I opened her up to see WHY the DA pull was north of 15 lbs. When I got into it, I found that there was a large burr (chunk of slag left by the MIM process?) on the rebound slide. I dressed it down with a smooth stone and 2400 grit paper. It was also very dry, so a liberal coating of 3-in-1 oil made things better.
Under dry firing, the trigger would seize and hang up, refusing to advance the cylinder. In a fit of disgust, I sent it off to Denny Reichart at Sand Burr Gun Ranch (Indiana). He had it for 3- months. It gave him fits as well. There was a considerable amount of things that plagued her. The DA sear was too long and had to be trimmed back to spec, so it wouldn't interfere with the DA operation. The insides were as rough as a cob. He dressed them down to make it as friction free as possible.
Upon receiving it back from Sand Burr, I shot about 150 rounds of Remington Golden Saber .38 +P without any issues. Last week, I shot her again with Speer Blazer Brass .357 Magnum 158gr ammo. I had 80% FTFs with this and some Remington 125gr Magnums.
When I got home, I thoroughly cleaned the piece and replaced the "bossed" mainspring (AKA: Wolff Reduced Power mainspring) with a legacy S&W unit. The DA pull (I don't shoot SA) went up from 9.5 lbs to 12 lbs with the spring. I should also say that she had from the onset of me owning her, a Cylinder and Slide extra-length firing pin.
I have yet to re-shoot her with the mainspring modifications. I hate to think what it would have been like without Denny's expert intervention.
With that said, I love the gun! Up until last week, it was my "house gun" with TK moons loaded with the Golden Saber .38 Special +Ps. Until I ascertain her reliability, she's "off the job".
I have done a few things to her prior to and after receiving her back from Sand Burr. The front sight is a Trijicon unit from Dawson Precision, the Combat trigger modification was done by Mag-Na-Port with the hammer done by Denny to match. It also has the V-notch S&W .160 rear sight blade. I routinely change out the S&W cylinder releases with the SDM units for better purchase. The Herrett's Trooper stocks in burled Walnut complete it out.
She's very accurate and will give yeoman service as a duty piece or as a 'fun' gun. I like them, but take issue with the QC fail that S&W should've caught. In a Six Sigma industry, this gun shouldn't have left Springfield with the 'warts' she exhibited when I got her. These issues have been for the most part rectified. The heavy trigger pull and resultant hammer fall SHOULD light off any primer.
There are two flavors of the 627-5: The Pro Series and PC version. The PC version allegedly has some extra attention paid to it. I wish I would've gotten the PC version. I've spent as much money in repairs/modifications that would have offset the difference in price between the two lines.
I don't want to sound like I don't like them, but be prepared to explore the possibility of send it back to make it perfect. Just my $.02 worth of experience. I hope your experience will be vastly different.