Good until...the 2 last seasons Loved the cast of characters and the 4 first seasons. (for those reviewers who cannot fathom the Taylor Mason appeal, here is my question: you don't like intelligent human beings solid with ethics and courage? Me, I do. She/they is the moral relief among the disgusting old boy bastion that Billions makes a point of shoving in our face- hello Charles Rhoades senior! (this said, this elderly reprobate is a lot of fun to watch.) The show is fun and thrilling, well constructed and well dialogued...until season 5. By season 6 onward, the situations and characters tumble into a crazed washing machine drum, up and down and recycle: a circle of unbelievably fast plot twists and a repetitive format of snappy dialogues that all sound written by AI. No character after season 5 can utter a sentence without throwing in it a sports or pop cultural reference. Since sports and pop culture are not my bag at all, these references went over my head, or under my feet, leaving me annoyed and bored. (Now real quotations from Voltaire or Kierkegaard or Seneca...might have been more appreciated.) The whole crew turns into one-dimensional cartoon clichés- Wags, Spyros, Dollar Bill, MaFee, Kate Sacker, Dave,Wendy and Chuck Rhoades, Ryan, Bonnie, Mike Prince and even Bobby Axelrod. To add injury to insult, by the time he is written back into the show on season 6, Bobby Axelrod seems to have had the fire extinguished from him (in real life indeed, Damian Lewis' wife died between 2 seasons, and for all Lewis' great talent, I read that tragedy in his eyes and body language. I feel for his pain, sincerely.) Otherwise, it had been a fun ride with Paul Giamatti& co while it lasted.