It’s trash most of the time because most harem anime focuses on every fucking girl sucking this one guys dick and i could just go to hentai haven for that . But sometimes the show can be pretty good because they either lower the sexual content or they add a special twist. That’s why I like High school dxd, it can be the closest thing to hentai most of the time but when it comes time to get serious the main protagonist turns into a bad ass character and you get the same feeling like when u see goku turn super Sayain for the first time. But to round it all up it depends if the producers wants to get the watchers dick hard for Lolis and generic anime girls or if they want to make a good story.