TL;DR
The most average, boring Isekai created.
I have to admit, a couple months ago, I was on an Isekai grind; Overlord, Slime Isekai, Shield Hero, Re:Zero etc. and whilst I was watching these shows, I thought I could never get enough of the genre. Yes they all had the same principle of someone being transported to another world, but they could always put a unique twist on what would happen to the MC which made the shows enjoyable and fun to watch. However, I think anyone who has watched Isekai Cheat Magician can agree this show needs to be renamed: Isekai Cliché Magician.
Whilst watching the show, I couldn't help think to myself that this was the most basic Isekai out there. At certain points, I couldn't even find the motivation to watch the next episode it was that boring and plain. But I won't spend time dwelling on this fact.
Visually, Isekai Cheat Magician looked decent, in no-way was the art style unique or distinctive but it wasn't the worst I've seen. The major downside was mainly the animation; There were hardly any animated fight scenes that would get you thinking: "The animation team put time into this", or show off how strong the MCs were.
In all honesty, The OP was really good. I was getting Overlord vibes due to MYTH & ROID which is probably the main part of why I enjoyed it too but whilst watching it, I've got to admit, it did make the show look good. Too bad they couldn't keep up with this quality.
Like I've described previously, this is the most generic Isekai ever created. It had nothing special to it or had anything to make it stand out. Just simple OP MCs who was really boring.
Leading on to characters, Why? Why did Rie Takahashi have to have a role in this? From all the shows she's been in, this has got to be the worst. Don't get me wrong, her voice acting was still good, but her character as well as all the others were so tedious. There was no development and I can't see how anyone would favourite any of the characters.
Levels of Enjoyment were debatable, It was quite funny being able to guess how much of the next episode you could predict as well as what was gonna happen during the episode. On the other hand, it was just so monotonous and that's exactly why my rating is so low.
In Conclusion, The Isekai Animes of Summer 2019 have been the worst by a long shot and after this season, I hope no other studios jump on this Isekai Bandwagon and pump out some utter shit.