I'll just say it. I'm reviewing this months after finishing the show, and I don't remember some of it. Which in itself is a bad thing, but it's a harem anime, so I think "forgettable" was a given since the beginning.
So, from what I can recall, it's about a guy who meets a bunch of cute girls and somehow someway makes them all fall for him, we've never seen this plot before, I personally would give my left knee to see something similar to this, etc.
As a tutor, your MC (because I don't remember his name nor do I care to look it up) is supposed to teach seven sisters about maths and sciences because all of them are apparently fucking stupid, and...and harem things happen. That's the plot. Huh.
Well, as usual with me and harem anime I didn't enjoy much of it, and nothing really stood out to me (most of the girls were very stereotypical -dere types, not something I really care about) EXCEPT the art and little tidbits.
For a story of this quality, The Quintessential Quintuplets (god that title is annoying to spell) has NO right being this well animated. The style of the little reactions and well animated and drawn cutscenes highly remind me of Kaguya-sama S1, although that came later, which means Kaguya would have to be drawn off this instead, but the baseline is that this anime is way too well drawn for a plot like this. The side reactions, the effects, and clearly just the animations put it above other harem anime as it's actually well-drawn instead of a choppy or emotionless slide that are a feature in other harems.
Is there anything else about it that's worth watching? In my opinion, not really. "BuT tHeRe Are WaiFus" and none of them are interesting apart from their external appearance. There's nothing that separates them from the other tropes, except for headphones.
Final verdict: 4 artistic talents/10