For instance, they start their case making process with a nicely shaped and rounded metal that already looks like a case, vs a piece of raw and straight metal rod by Roger Smith. Besides, the HMs are double the price of RS despite a different handmade starting point (more hours needed to process that metal rod into a watch case).
Thanks to my AD, we have a small community of RS owners who gather, once in the presence of Roger himself to talk about watches. The owner of my AD has a collection of GD and RS watches. From a "quality" perspective, we could only opine there are haters who use the same image again and again to thrash the brand, because ours are good. We are coming from owners' perspective. I also personally know 3 other IG accounts, seasoned watch collectors, who are perfectly happy with their RS. RS doesn't make that many watches and we represent a good percentage of ownership experience.
Finally, RS uses CNC to drill holes into the case to ensure better water resistance for more precise gasket positioning. That to me is a sensible approach. There are independents who don't recommend washing our hands with their watches.