Ruger seemingly has gotten the new production Marlins going out the door in an impressive manner. From everything I've heard & read, their QC fit & finish are pretty darn good. I have not yet shot or held one, but the consensus so far is good.
While there are a few differences in their production methods, at least they have stepped up to the Plate and made them high quality rifles. There will only be one JM Marlin and they are now long gone, but at least Ruger has done an excellent job in resurrecting the name and models. They are also giving the rifles back the reputation and quality they deserve after Remington completely destroyed that.
I am hoping that they also come out with the 39A. IMHO, the 39A was the finest 22 rifle ever constructed. Yea, the Winchester 9422 was an excellent, buttery smooth and gorgeous rifle / carbine in its own right, however the 39A was full sized and more comfortable for most of us and just plain always worked. The Henry's are just not my cup of tea. Yes, their quality is good and they work just fine, I just can't deal with their construction, looks and materials they use. I suppose one could make the argument that they are selling them at a much better price point and yes, that is true.
Good luck with your new Ruger - it looks great! Let us know how it shoots.