I’m a gin martini fan. Don’t drink ‘em at home as I like ‘em too much. Have one or two out, with dinner, occasionally.
I like a gin that really tastes like gin, by which I mean juniper, I guess. E.g., I find Hendricks too smooth. I have been trying to find Plymouth, which I hear is pretty good, but have not yet. Usually wind up with Tanqueray or Bombay Saphire.
Seems to me there might be too much vermouth, for my taste, in the OPs martini, but I have not made one for myself in decades.