I had a subscription through work and was excited to jump in and learn as much as I could but I found the talks to be quite information-sparse when compared to say, destoryallsoftware.com [0] videos. As a result, I was apt to watch lessons at 1.5x speed in order to cover ground more quickly, which took a little getting used to.
I looked into why this might be, and discovered (at least back in 2015) that authors are paid in part, per minute of engagement [1], which might account in part for the length of the courses.
Judging from what I've read subsequently, I may just have been unlucky in the courses I selected (I didn't watch any Microsoft ones for example) so if anyone has any recommendations on particularly good courses, I'd be interested to give it a second try.
[0] - https://www.destroyallsoftware.com/screencasts/catalog/funct...
[1] - https://www.troyhunt.com/on-being-pluralsight-author/ (germane text under 'Royalties' heading)