The show has changed a lot since the first season -- characters have come and gone, dreadful tragedies and a few triumphs have occurred. The constants -- Carrie and Saul -- have changed and developed in a fashion that is consistent with how they were portrayed at the very beginning and yet surprising in some respects. I have enjoyed some episodes and some seasons more than others, but overall I judge it to be one of the best television season ever, and completely worth the investment of time to watch it from the very beginning.