I actually really liked the original trilogy that came out (with Noomi Rapace), from a narrative and acting POV.
However, that's not saying the Fincher version didn't have some impressive qualities. He usually has great production quality, for one, from a technical perspective. There's also a lot of mood ambiance to his films; I think one of the great things about se7en (for example) is the look and feel of the film which is intense and relentless, even if from a plot/character perspective I didn't find it as enjoyable. The Game, despite being old school special effects if any, is again another "mood piece" -- he really manages to stoke up paranoia and uncertainty over what's happening simply by the look and feel and framing of the film. I kinda wish the studio had been willing to see what Fincher could do with the latter two Dragon Tat films, but they just didn't reap the financial reward they thought they would.
Alien3 was kind of disastrous in terms of studio interference, which resulted in a jumbled theatrical release. I'm not sure I am into Fincher's cut from a large scale narrative view of the trilogy; however, one can't deny the film has a typical unique Fincher look and feel. (Grungy, intense, severe, a bit disturbing....)
His influence on Mindhunter (a series that came out on Netflix recently) isn't quite as strong but still a bit apparent.
Then there's Fight Club, of course -- same grunge look and feel, it really gives a lot of overall ambiance to the film. (like that old house they spent so much time in, it almost was a character in itself.)
Anyway, I think you're either into his style or you're not. I can understand it if someone doesn't have a taste for it.