Oh man, where to even start. This manga is basically what happens when the MC and his party are goofing off, and god damn is it funny.
Although the general seriousness of, well, ANY situation is toned down to being a merry stroll, the comedy of it skyrockets. If you have read the WN/LN or the manga of the main story, you know the general direction of the story is going to follow it, but this is more of what happens in-between every event of the main story.
The art has been toned down quite a lot. Of course, it isn't in a bad way,
but any seriousness has been removed. Instead, we get chibi versions of all the characters as they make their merry way through their day. And, oh god, the facial expressions are hillarious. I found myself in tears at the final scene in chapter 2 of V1.
Although there hasn't been much, if any, "character development" so far, the characters themselves are funny and stay true to how they are in the original story. The interactions between everyone are great.
As I have mentioned before, the comedy and overall enjoyment while reading this was great. I found myself almost in tears at a lot of scenes. The only problem I did have, however, was....once I ran out of chapters to read.
To sum it all up, this is definitely worth the read. If you have read the source material, you'll definitely get more enjoyment out of it then if you had without reading it (You'd probably wouldn't even know what half of the scenes were joking about though, so that's kinda obvious). The chapters are a bit short, but you'll enjoy reading it all. If you have the time to read it (which chapters take about 5 minutes even if you read slow), and have read the source material, it's definitely worth checking out