I have bought a boatload of razors this past year. Some good for my face, some not so good.
ATT, Blackbird, Barbaros, Mamba, Rockwell 6S, and the list goes on.
I went on a Tech kick for a while and can get BBS with various model techs. I kept hearing how the Feather was an "improved" tech. I just had to have one. I could not get a decent shave to save my life,
I have recently converted my brother to DE shaving. Started with a prewar tech and he tried a post war tech and liked it. I gave him the Feather to try. He thinks it is a "gift from the shaving gods." He loves the way it shaves. He even mentions the balance and weight are just perfect. From a newbie no less!
Same gene pool, different results.
This "hobby" is definitely a YMMV proposition.
Good luck with whatever you get.
Never tried the Rockwell but own the AS-D2. In my book it is an absolutely perfect shaver. Bar none. Love it. Mild yes, but truly efficient. Highly recommended.