To start, the premise of this manga is great but the conclusion feels... unsatisfying. Maybe that was the goal, to get the point across, to leave you craving more. Or maybe the artist just bit off more than he could chew. From good things, the reverse predator/prey dynamic is refreshing. Again, Nagabe's artstyle doesn't disappoint (beyond the occasional case of "yaoi hands") and character designs are aesthetically pleasing (one pet peeve will be how much Lufria's clothes blend in with his fur, so some scenes might leave one confused upon first glance). I'm a big fan of how the main "pair" compliment one another through furpatterns, the reverse black-white ratio is almost reminiscent of yin and yang.
I say "pair" because the characters are not explicitly queer, one even outright denies "swinging that way". It's a prevalent trope in BL of course but the fact that Lufria's desires are shown to be a result of childhood trauma might be enough for some readers to skip this position entirely. The story focuses mainly on just 3 characters and yet, somehow none was fleshed out nearly enough. From the main story, nothing is known about them beyond their professions, they are no more than vessels for their kinks. This is most likely partially caused by the oneshot formula but I couldn't leave it unmentioned.

In conclusion, "EAT" shines in visualizing the protagonist's fantasies, it's the best portrayal of furry oral fixation in manga I've seen to date. It caters to a specific niche and does it well, despite having some hiccups along the way. If you go into it free of expectations of deep plot and intricate analysis of ethics, you will probably enjoy this strange little story.