It's a drama said to be loosely modelled on Rupert Murdoch's family. A monster of a patriarch builds a media empire and his children make power moves against him and each other to succeed him. I've seen it labelled as a comedy-drama. While there are no straight out comedy lines, there is much to enjoy. The principal characters all have zero redeeming qualities. I spent the first 2/3 episodes thinking "when does it get good" but once it hit its stride, I was hooked.
Succession... I didnt think I was going to like it even after the pilot. Its a slow burner. The season 1 finale is compelling TV especially the scene as Kendall walks to deliver his message (avoiding spoilers).