I didn't know anything about this show, I was intrigued by the title and binge-watched it in 3 days. Obviously I enjoyed it a lot. I read in the reviews many people compare it to other similar shows. Well, I don't. I haven't seen the Black Mirror, but I remember enjoying the "Twilight zone" when I was a kid. Also, I happen to be a huge fan of sci-fi short stories. I really really like this genre, because it escapes from the trend to write endless sequels, prequels and whatnot. It's just a good story with a beginning and an end and that's it. So basically, that's what you'll get from the Dimension 404 - a good story. Each of the episodes is a separate story and it's a VERY GOOD story.
My favorite episodes are 1, 5 and 6. "Chronos" also was very good, but I think it had some scientific flaws. But basically all of the episodes were fun and engaging on a deeper level. And they left me thinking and sharing my thoughts with other people. In short, I was surprised and amazed.
Also, I like the length of the episodes and I liked that they are not too dark. I don't think good books or films should be dark and gruesome. A good story is a good story and those stories were good for me. I hope there is a second season.