The first episode or two was pretty neat! A good intro to the world and what's possibly going on, it sets up the characters and their in-game challenges to overcome, what the room for growth is etc. And it does this for their out-of-game characters as well! I thought "gee that's nice, sort of like another Sword Art Online, or No Game No Life. This could be interesting, I'll give it a shot".
But then it starts to introduce things that don't make sense, given the above-mentioned initial setup. So you think, "ok that's that's fine, it's not a complete bait and switch, there's just something deeper going on, I'll stay invested in the series to give it a chance".
But then it does it more. And more.
It shifts completely away from the vibe, setting, and challenges of the first episode(s), and even episodes immediately preceding the current. It also makes the mistake of setting things up and indicating that there's a high level of importance attached to them, but then they're completely dismissed in the next episode.
There's so much whiplash that I genuinely cannot help but wonder if this series was written by AI (or a child with a great imagination); it's just a mish-mash of ideas that don't connect or flow, over and over again. It's either that, or it was rushed. I.e., perhaps the writer(s) were only given 12 episodes to condense what should have been at least a few seasons.