I've read up until chapter 44 but I can't say I'm a fan so far. Not that it is bad. In fact, I'd say it's competently written and the drawings are good. It's just that it feels flat.
The main character is a prince who wants to save a neighboring country from a curse. He's a good guy. I don't think I've seen a part in the manga where he has shown a bit of selfishness or some kind of flaw, except maybe for how little he cares about his own well-being. And that's it. He's just a good guy.
The princesses... they are also kinda one note. They all have different personality but maybe it's because they are 7, for now we only had the possibility to see their one defining trait. There's Claire, the "main heroine" princess, then Chiara (also the best girl for now for a lot of readers apparently), plus the other 4 and the last one, Charlotte. There's not much to say about them, apart from those that I've given the name, Charlotte in particular, because of how quickly she gets angry (she feels like a tsundere tbh).
Some people didn't like how, in the first chapter, they wanted to exile the MC for kissing them while they were sleeping. I didn't think much about it as it was obviously a tool to introduce all of the princesses.
Like I say, there's not much to say about it after 44 chapters. Not a bad read, but without any surprise for now.