Howdy,
To me, the moustache-shaped head is the most beautiful thing about this razor and many tried to copy/mimic (yes you parker variant), but in my opinion they came nowhere near the perfection that Merkur achieved. Performance wise, words don't do justice, it's an excellent shaver, great performance, very comfortable (I got the long handle version 'cause I got large hands), easy to find the angle, and the list can continue.
The plastic dial... well... if I'm honest it doesn't bother me and no, I'm not crazy about it either. I'll admit I looked at the mergress too and thought about buying it, but in the end a razor with this much history deserves to be in its original shape (at least in my den)
Just look at it! Beautiful!!
Have a blessed evening folks!