At this point, I can't help feel that "Isekai" is a term that means "Educated modern guy reforms the cavemen" or "Genius is born in an archaic society."
Who our main character was doesn't really matter, what does matter is the setting. Our main character, Wendlin von Baumeister (something like that), is the 8th son of a poor, low-ranking noble he is fated to a commoner lifestyle. Luckily for him, he is a prodigy that receives an magical education from another prodigy. The story details his exploits climbing up from the bottom of society.
Story: Compared to the original light novel and the manga adaptation, the animated series does not compare at all in regards to pacing, content, or dialogue. Everything has been whittled down to meet time constraints and to fit enough plot. In the original, more raunchy topics are touched on, but this adaptation has been mellowed out for reasons we can guess.
Art: The art design is somewhat bland. Nothing too special. The effects were pretty, which is probably the only this I found notable.
Sound: The opening was pretty jarring for me at first, but it's actually a banger. The ending was calm and nice to listen. Sound effects and the BGM throughout the series is somewhat exciting. However, I did not like the harsh piercing noise for the sound for the activation of magic. It was unique, but my ears didn't like it.
Characters: The main antagonist, while somewhat cliche and one-sided, was gratifying to watch. On the other hand, the main character and his sidekicks were more or less typical characters you would find in other isekai with little ambition other than to serve the main character. Particularly, the last girl to join the harem was very boring for me. People complain about main characters having "no personality," but I say they are wrong. This girl should be deemed as the standard for "no personality."
Enjoyment: I only watched the show as I read the source material. While I did get a kick out of seeing the characters I read about in motion, I can't say I would recommend this for the common watcher. As a connoisseur of "bad anime," this was good enough for what it was, but far, far, far from something I would call enjoyable.