Spoiler free review, because series needs a plot, to be potentially spoiled.
Another high school isekai/harem series where teen-looking girls have jumbo tits, air in their brains and plot is held by overused jokes, tropes and fanservice. And it's not fun at all. It's not self-aware comedy, it's generic, safe, predictable, no story, no substance, no characters' growth, no plot, series. Watching rocks becoming sand in the spar of 50mil years in slow motion would be slightly more interesting than going trough this series again.
In general the best things about this series is art, which is very eh... boring. Looks like another Ichigo100% copy, but now with some demon horns or something. Very forgettable. It's not even close to things like Vampire+Rosiario where was at least some sort of settings and story happening.
The main plot is a Satan's (Beelzebub) daughter is living among mortals as a teen high schooler for some reason, totally blending in for another reason, and she finds a perfect soul, a guy with zero characteristics besides being total fetish dog/bottom to fit some boring jokes. Why does it matter? Demons feast on souls, but that's just in 3 chapters and then it is never used again because fanservice doesn't need plot.
Later in the comic, there are more female characters introduced. Male kid is being useless plot hole filler and most dialogues are internal ramblings of main 1000 years old teen sometimes being teased by her servant (succubus) or sister, or whatever author feels like would work at the moment.
You got tired and overused scenarios, beach, girl fondling other girl, chest size jokes and so on.
At some point chapters are 4-8 pages long. Just some tits, lol she's embarrassed, omg dude doesn't care he's so lovely!!! -this recurs on and on, for like 10 chapters. so roughly 60 pages. There are shonen manga chapters being longer than that. Just proves the "quality" author delivers. No quality that is, but there are some cleavages and butts in your face.
Character design is so bland, most times it's hard to tell them apart if not for hair, because that's the most distinctive characteristics, and all having almost the same hair style doesn't help that much either.
Skimmed trough later chapters, and predictably, whole demon and soul eating is basically non existent, but there are more tit jokes. Haha so funny, tits, ass, tits, ass - comedy people, we're dealing with some serious comedy gold here!
If you are horny teenager you'll like it, if you are normal, you will not like it because it is bad, poorly written, very generic and forgettable series.