I read about the series online and thought the premise was kind of interesting, so I gave it a chance. As of now, I watched the first two seasons and up to episode 10 of the third season. The first season had a pretty tense ending, which I liked, but the second season and the thrid one so far were pretty boring. There are two big downsides in my eyes: First, the main character and his followers are so incredibly overpowerd that they are, except for pretty much one situation, never remotely in danger. They just smash everything that gets in their way. Unfortunately, there's not much getting in their way. So it's not an action-kill-fest and the few actual fights are boring. Second downside is the story. We get to know a lot about our main character and their old and new world in the first season, but this strongly declines after. Side characters are mostly one-dimensional and rather dull, though sometimes funny. Some parts of the plot seem utterly pointless, like five or so episodes spent on some lizzardmen, which does not contribute anything to the actual story. After those episodes, they are not seen again. This is especially sad because the episodes are pretty short.

So all in all, it has some good ideas, especially in the first season, but it rapidly declines afterwards. Episodes are short, but that also makes them easy to watch. Storytelling is too slow/unfocused for the short episode length. I read a little bit in the wiki and apparently there's lots of interesting stuff in the light novels, so we might get some better seasons in the future.