If you wanna watch a fantasy anime show where most of the runtime is spent with the enslaved male lead getting abused by a dumb and annoying tsundere girl who always tries to play the hero while not being able to do any magic correctly then this is the show for you.
Now don't get me wrong, i do get the appeal of tsunderes (trust me, one of my favorite anime characters of all time is Taiga from 'Toradora') but Louise is straight up abusive to Saito, not only does she deny him food for i don't know how long, makes him sleep on the floor and wash her clothes (including her dirty underwear) but she hits him with a stick thingy too, and yeah i do know this isn't the only anime where the tsundere girl hits the guy but at least in other series the guy isn't getting beat up with a freaking stick.
I really don't like saying this but... just imagine if the roles were reversed, there would be way more feedback if it was the case, as everyone would see how abusive this all is, let's be real here ! (or maybe not, cuz some of y'all really don't like women but that's neither here nor there)
What makes it worse is that Louise isn't a good magic user, cause as i said she's not able to do any magic correctly so her being a huge jerk isn't even justified here, i mean yeah she's a noble but does that even matter if she sucks that much? I have no idea how she wasn't expelled from the school when she's this useless.
And i'm saying all that even though i didn't like Saito either (or any of the characters in the show for that matter), sure Louise is the worst main female character/love interest i've ever seen in any media but he's just another boring self insert isekai protagonist who you just follow while not really caring about.
With all that said, I would still recommend this to people who can look past that and just enjoy the show for what it is as it's not something most people would (or should) take seriously, even if I don't believe that abuse is funny in any case but hey maybe that's just me, although i do think it's worth mentioning that it does get better after four episodes or so if you do plan to watch it.