Acceptable, but not more than average. I dislike the excessive interaction with the modern world, hell, I hate the fact that he's even able to travel back and forth, I am especially disgusted with the fact that he's even introducing stuff from the fantasy world to the modern world and not only the other way around. He's kind of living a double life, so this novel is half on earth half in a fantasy world.
The comedy is kinda subpar, it's really not that good. The mc himself is a somewhat worthless human being with no talents, no real courage and low intelligence, but he can succeed in life because he's capable of, that's right, pretending to be knowledgeable/amazing by using modern day information or magic world items, none of which has anything to do with him. He didn't even think twice before showing around some magic drugs in the modern world that can instantly(almost) heal injuries and trying to mass-produce and sell them, but of course there'll be no issues, since everyone is flowery retards in this world and nothing bad will likely ever happen. He can bring over everything he touches at the time of transfer which happens every three days on the dot, I guess he'll start bringing in guns, cars, modern farm equipment and even people later on, geez. The characters are quite flat, I don't feel as if they're living at all, they feel way too 2d. The world is similarly uninteresting.
Overall, this is a novel that isn't worth reading, at least not for me. It's not the worst I've seen, but it's really not a novel that I'd waste my time on and I freaking read 1600 chapters of MGA before I got so fed up with that garbage I quit, so that says something. This novel has similarly flat characters and a mc with sh*t for brains(no offense), but it also a chaotic setting where "everything goes and everything just falls in place without any issues", I can already predict how stupid this story will be later on when he starts bringing more stuff between worlds. Maybe he'll bring an airplane or missile to the fantasy world and qilin or dragon to the modern world. Would be kinda interesting if he managed to bring a bunch of hydrogen bombs to the fantasy world and a lot of top-level fantasy creatures to the modern world, that way both worlds can experience the apocalypse at the same time and maybe this story would take a turn for the better :D