Well people are people, some of them like harem, some don't and some, like me, enjoys harem only if is a "good" harem and hates the "dumb" harem ones.
Looking at this one's novel it seems that it has the kind of harem I like: usefull waifus besides being MC slaves, waifus with their own agenda, waifus with more than one "personality"... that kind of harem. Might read the novel sometimes in the future.