It's pretty bad. I tried to read the manwha but it's worse. The author doesn't know how to tell a story. He focuses on small details, about the trials so much that gets boring. Instead of letting the pictures show you the story he puts a wall of text of how the gimmick works, when he could just show you .
Art is kind of bad, the characters are not charismatic.
No one understands nothing about this world, and instead of telling you how the things work, how is the world outside of the tower like it wants you to be sympathetic about every climber...
Well it didn't work for me. And if you try to say something like this show is boring for x reasons you are going to get harrased by the fans that actually climbed throug those 400+ chapters of tower of poop