I read the two and a half books of stormlight archive (which from what I hear is his best series?), I found the characters really meh with the exception of dalinar maybe. the world building was nice and I didn't feel that it was the sort that relied on very heavy exposition.
the plot was fairly interesting but it took ages to progress and I don't think this is an issue of slow pacing, it just felt like bad writing tbh. book 1 for example could've been cut down by a few hundred pages without anyone missing out on anything substantial imo. what I really hated was the narrative choice of switching POVs each chapter and the flashback chapters of each book's main character, it ruined any sort of immersion and just didn't interest me at all. (my issue is not with multiple POVs, I dislike how he handled it)
also the dialogue was horrible, like every attempt at showing a character being witty just came off as really forced and the general dialogue didn't feel like two real people speaking to each other
obligatory fuck shallan, words of radiance might've been my favorite of the series if shallan wasn't the main character. the whole multiple personalities thing just came off as REALLY corny and cringe, which maybe it was intended to be but still