Actually pretty good for this genre standards, BUT
I'm still annoyed above all the fucks that isekai part DOES NOT MATTER, and that mc personality is... Actually, he has personality, he's a magic nerd, he gets all worked up on anything that seems interesting and picks it up instantly.
BUT, why is it an isekai then? This personality actually works perfectly if it's just a normal fantasy, it even gains a lot if it's just how he is from birth.
But nooooooooooooooooooo, we need an isekai lable, and we will never do anything interesting with the fact, that it is in fact an isekai. It's probably better to ignore he reincarnated and just treat it as a normal fantasy for a better story feel.