They were a beautiful firearm when they first came out, and many considered it the flagship of Rugers line. I knew several that trap and skeet shooters had put tens of thousands of rounds through, and they served hunters just as well.
Sadly, about 2015 there were some problems with quality control at Sturm Ruger, and I personally saw 3 new Red labels that came into the gun shop where I worked with barrels and ribs noticably curved to the left. Evidently, the barrels were screwed into the mono lock, the put into a fitting jig that had the barrels and ribs bent to the left. I saw no less than half a dozen that were the same way.
If you buy one, the older ones are probably better.