The problem with "if you liked this you will like" recommendations is that similarity means nothing. This ingenious thought has occured to me while I was reading recommendations for Love Hina on MAL:
Both animes share the same premise, a boy, not especially popular, suddenly finds himself surrounded by girls interested in him. A lot of the visual gags usually arising from misunderstandings, which result in the boy getting beaten up and called a pervert, are also present in both series.
Yep, but that’s not the point!
Good series are good despite what they are. They’re a shell with pearls in it. Recommendations are like, "Did you like that? Well, there’s a bunch of more shells."