Ok, the Rockwell 6S in Stainless Steel: plates 1,2,3 are super mild, perfect for someone transitioning from multi blade cartridges. #3 is equivalent to the Feather Razor in mildness. I used plate 4 for a while then moved to plate 5, it's pretty close to the Merkur 37C. Plate 6 is an aggressive shave, good when you have a weeks worth of growth. I did single passes and 2 pass shaves, never got razor burn. My preshave routing consists of washing my face with soap, applying Proraso Sensitive Skin Preshave and then massaging it in for a minute. it softens the whiskers and makes them stand up. Preshave oil does the same thing, but the Proraso Preshave rinses clean with no oils left over. For shave soap I used Cella. Love that Almond smell. After shave was Speik with Witch Hazel, or Ogalla Bay Rum.
What I like about the Razor is that it's Stainless Steel, American Made (USA!), and comes with all the bottom plates with different blade angles. I used Feather blades in it for my daily shaves and have come to like the longer handle and weight of the razor. At roughly half the cost of the Feather Stainless steel razor, it's a good value since it will outlast you.
I tend to like 3 piece razors because they have such a solid blade lockup. The only exception is my Gillette Imperial Adjustable. That was my first razor and it still gives a super consistent shave despite being over 45 years old.