Pretty decent. Just a little tacky.

Rating: 7/10 (7 January 2019)

Aquaman has more going for it than most of the latest contributions from DC.
I'd say Wonder Woman has a clear upper hand on Aquaman, and I do not for the life of me understand anyone saying otherwise. But Aquaman is a well litt hope for the DC universe, and I definately want to see more of him! The good:
Arthus/Aquaman is a cool guy. Straight out, and hands down. His character also has a great backstory, and great development in this movie. In my opinion. And I must say that DC did him justice (no pun intended) by the way they presented this backstory. I believe Batman Vs Superman went a little too deep, and too far back with a lot of backstory/buildup - but Aquaman did it just right for me. Deep, emotional, thorough, but not wasting anyone's time. Just the important stuff that hits you in the heart.
Then there is action, cinematography, CGI, colors and all of the above - and the movie is pure eye candy. Maybe not the coolest fighting scenes, but definitely cool fighting scenes. Some original camera handling/rotations made for a nice little twist to certain close combat scenes. When it is not close combat, it's underwater Star Wars. I... think I can dig that.
The bad:
I'm sure this is all very true to the original material and all, but I'm not all that into having 2 bad guys in one movie. Not like this anyhow. One of them was great, the other was not (hint: it's Black Manta). A massive cliche if you ask me, and (and watch this get down voted by the comic book nerds! :O). For the record, I do recognize that he did play a significant role in the plot development. But I still didn't like him - so there!
To me, Black Manta got the same effect on this movie as Team Rockets gets in every pokemon episode (if you get that reference).
Furthermore, while the plot is good "per se", it is utterly without plot TWISTS, so you will probably never go "Whaaaaaat?!" anytime during this movie. You'll predict most of the movie plot development and ending by the time 20 minutes have passed, and you'll most likely be correct in all your major predictions. But this stuff is totally possible to roll along with and enjoy despite of, and most movies these days are just like this. So, I'm not pulling too many points because of it.
If there is one more tiny setback I feel the need to mention mention, is that I find some of the humor misplaced. The movie has good humor, and strong emotional scenes, both frequent, and well done. Separately. But sometimes the movie just missed my emotional state - which itself is responsible for putting me in. I'm brought half way to tears, then served a joke that feels inappropriate. And visa versa. It's not like this the whole movie, but enough times to for me to make note of it.
All in all: 7 / 10 is GOOD. It's Aquaman, he's cool, and its all pretty. Many good actors btw - I forgot the mention that. It's worth the watch, but no minds will be blown out of the park.