Confused by bad reviews

Rating: 9/10 (6 April 2019)

I'm not sure if those writing the bad reviews are just really into comics and have some bias towards this movie. I just like watching movies and really couldn't care less about comics or brands of comics or anything like that. After reading some reviews, I really did expect a mediocre movie and kind of delayed watching it. I don't go to the theater a lot, so I opted for Bumblebee instead of this just because of the negative reviews for Aquaman.
I'm not going to go into detail about the movie, but just want to put my opinion out there that this movie is exceptional. It's hard to do an underwater world that doesn't look cheesy, so I think the filmmakers have done the best I've seen so far with the underwater scenes. The storyline is somewhat linear, as all the movies based on comic books are that I have seen. I was entertained the entire movie, thought the battle scenes were very well done, and found the characters interesting.
The development of the love story between Mera and Aquaman is simple and predictable, but it's based on a comic book, what do you expect? I thought Black Manta's role in the movie was excellent, and found him more interesting than King Orm.
I don't know if the low ratings are a DC or Marvel thing, but I think they are unfounded.