I liked it :shrug:
I personally found it better than Black Widow. Having come in with the expectation that it somewhat breaks the Marvel formula, but no expectation of the "Chloe Zhao" formula (I still haven't gotten around to watching Nomadland).
I found its twist to actually be a sufficient twist.
I found its LGBT representation to be satisfactory (not something easily removed like most recent TWDC rep).
I found its cinematography to be stunning, especially for a Marvel film. That said, screensaver the movie is a fair description, there was a scene or two where I genuinely thought it looked like a screensaver I had seen before.
While I see where some were coming from, I didn't feel as overwhelmed by the quantity of main characters as I expected to be.
That said, the fast running girl and mind control guy should have been cut from the film completely. Other than the speed coming in handy in some fights and mind-control offering the commentary on human conflict, they were largely not needed for the plot.
While used sparingly by Marvel standards, the CGI wasn't nearly as bad as the trailers made it out to be (although I could help but laugh when the fire filter came over Richard Madden's face as Ikaris flew into the sun).
I'm genuinely shocked Thena didn't die. She was #1 on my list for who would end up dying in the film, that said, Hayek's Ajak was an unsurprising choice.
Also, I found myself oddly spoiled by the fact that DL's face characters for the Eternals consisted of Sersi, Kumail Nanjiani's character and the inventor character (too many names to be honest) in terms of knowing that they'd be left alive and Ikaris being suspiciously absent (I expected a sacrifice as opposed to what actually happened though).