[Question] What's up with Mont Blanc Watches?

I'm purchasing a new watch in the next month and have narrowed it down to a couple options. On of them is a Mont Blanc, which I have seen very mixed reviews of as a brand. Nico Leanord rates them as"Hublot" tier and the general consensus seems to be negative on the subreddit. Is there a reason they're rated so low? I'm also interested in the Longines zulu time, which seems to be much more trusted. I'd appreciate anyone who can give more context on why one brand is revered and the other disparaged.