So I now reached the Souichi stories. While Tomie was just dull from being the same thing over and over, Souichi is really irritating. Some of his stories, such as the coffin one and 4 layer room one
, could have been made into nice stand alone stories but instead Souichi is shoved in and ruins them.
I'd recommend skipping them as well, if you don't like the first couple. Then maybe try them again once you've read everything else.
It's a pity, Junji Ito's stand alone stories are so great but he seems to struggle with reoccurring characters.