It was my first Junji Ito manga, the manga is short but the story fits well in it, what show that he can create a precise plot without extend it too much.
The art is quite good, he can shock when he wants, whereas it is still stunning on the human characters.
I confess, I didn't get scaried, but I got surprised and I laughed in the end because it was too unexpected, Even today it's hard to tell the feeling I had when I read the last page.
Now I'm a Junji Ito fan, the most part of his works are awesome like Ningen Isu. If you
never have read a Junji Ito manga Ningen Isu is one of the best mangas to start.