Not sure I'd be considered one of the complainer or not, but agree with the guy above that this one is just running on with shock value.
Still wait for author to cook something good up while the shock train isn't out of gas...
Having said that, I kind of reminded of the time I read Gantz for the first time.
Very similar in terms of shock value and how clueless we were during the early chapter, but idk, that one feel like there's a more cohesive thread of wanting to know the secret behind the Gantz ball/system and getting away from the system. This one have a little of multiple threads here and there with none looking substantial; and the flipflopping with gag manga mentality really doesn't help