I feel the same about slater. Very smarmy. That said, the show is good. They did telegraph the ending though which I picked up on. That was my only complaint.I've balked at mr tobot in the past because I want to punch the lead in the face and hate Christian Slater but I'm willing to look past both
I think this is probably a thing with many shows. And it's probably a good idea to not follow shows through to the end.
Lots and lots of shows have a great original concept and story that can carry a season. But then they have to develop pretty much sequels to that first season, and like with movies, sequels rarely hold up to the original.
Game of Thrones had a bunch of good seasons, but only because they had a bunch of good books to go on. As soon as the books ran out it sucked.
Better Call Saul is one that seems to actually be getting better as it goes along, albeit with some missteps along the way.