It's easier for me to criticize than to praise, but I'll try. And to make it more interesting, I'll compare my favorite fantasy romances with most empty waste of my time.
Your Feyre became High Lady by marriage, devaluing the title of Cursebreaker. She had magic of seven High Lords, but it didn't help at all in most important war, and she has no friends or allies of her own.
My Jude became Queen of Elfheim because the land chose her, saving from death. She outsmarted her father, the most cunning and cruel general, ruled in secret as seneschal, and made advantageous alliances.
Your Rhysand is supposedly the most powerful, surrounded by strongest fighters, his army is the best of all, but he couldn't protect his wife's sisters, fucked up with Book of Breaths and almost lost the war.
My Cardan is a pathetic loser twink, very young and almost always drunk. But he is cunning as hell, saved the woman he loved from underwater captivity, avoiding the war, pal up with her allies while being their prisoner, and created an entire island.
Oh, Jude is still human. And Cardan is a true fairy, not just a guy with pointy ears.
Your Feyre left the man she died for in a fucking message and married her rapist. My Rose went to a strange, faraway country to save her man, but to kill him if she couldn't. Not to turn into a bloodsucking killer to be with him forever - kill him.
Your Rhysand thought for a second that age gap between him and his wife more than between her and their son. My Dimitri was going crazy and pushing away his love because he was her teacher just several years older. He is more responsible than 500+ years old ruler.
Oh, and despite being coolest, Dimitri became a monster. And Rose had an "alternative" - Adrian, who wasn't turned into an abuser and asshole, to show how beautiful love with Dimitri is.
Your Feyre hasn't done a damn thing for women (or anyone), her "feminism" is to be proud of role as a thief, saboteur and half-naked toy of a powerful man. My Vasya Petrovna (I'll die and rip anyone's throat out for her) dresses up as a boy and defends her right to be a witch, challenges ancient monsters, and saves everyone she can with her brains, courage and unbending will.
Your Rhysand chose to die with his mate, leaving his son an orphan, and at 500+ years old he's an infantile sexoholic. My Morozko, the ancient god of death and winter, make a deal with his enemy, a monster of chaos, choosing to be an eternal prisoner without memories about his love, saving woman that he loved as he could.
Whoa, Morozko didn't rape her in order to "protect" her. And it wouldn't be Vasya who would have to change - he would have become a mortal for her. One PG-13 sex scene was hotter than all the sex in ACOTAR series.
Why am I only comparing to Feyre? Well, she's the FMC, three books were enough to show her. I just don't believe Nesta would go to HoW with Cassian, and not decide to die in slums or run away. Elain is so side character that most of discussions about her will be fiction, not canon. Rhysand and Cassian were not even close to any of the men mentioned above. They are not otherwordly, old creatures, not morally gray, but only insulting to women whom they supposedly love more than life.
Romance in ACOTAR is vulgarity, violence and gaslighting, feminism is a mask and illusion, and the characters are too "cool" and therefore boring and flat.
Respect yourself. Read books where authors give a care about the plot, worldbuilding and development of unusual, fairytale love.