Essentially, this is an ensemble cast in the vein of The Avengers, but without the added benefit of 1-3 movies worth of charachter development for each Eternal.
There simply is not enough run time to give any of the Eternals any depth or relatability as individuals, and the time that was given wasn't very well spent.
The characters themselves seemed very weak compared to the comic versions, and compared to even some of the avengers themselves.
For a race of beings made in the same forge as Thanos, I could easily see Thor, Hulk, Dr. Strange or Captain Marvel defeating any of them with relative ease.
Judging this solely on the story and plot, it's a 5/10, but I'm going 2 stars due to it being such a weak entry in the franchise.