A friend has one, I've put a few cylinders through. It's a smooth revo for sure, shot well...but I don't like to own a gun I can't buy replacement parts for. You can order every single part for a S&W J-frame shipped to your front door in a day or two...and can be tuned to have a damn fine trigger pretty easily.
If your deal is two guns for $600, not $600 each, then why not give it a whirl.
They are excellent in every way. Heavy for .38 use, and a handful with .357 fodder. That was the only issue I had. That price is THEE lowest I've ever heard for one. So, absent any damage/wear...you can't get hurt on resale. Their 2022 catalog has an airweight alloy-frame in .38-only on the cover. Wish the bastages would get around to producing the darned thing!
This! .. I dont think you can score a Ruger sp101 for that price and ruger triggers are hit and miss. I love me some revolvers and the K6 has great reviews. If I had the money and inclination I would jump.