Great ending to a once in a lifetime series. The writing, cinematography, and acting were just magnificent throughout. Jimmy got back to himself and this was his way to redeem at least a little piece of the person who might have been. Heavy on the theme of regret, and we have seen Jimmy/Saul have brief moments of it throughout the series, Jimmy finally realized that all the money and bs and scams hurt lots of innocent people, particularly the one person who he truly loved, Kim. He tanked his sweet jail deal when he found out Howard’s wife may sue Kim for everything. That is why he blabbed on the plane in front of the agent so word would get back to the D.A. in Albequerque to draw Kim into the courtroom where Saul gets “gone” and Jimmy comes back. Nice cameos by Mike, Walter, Chuck, and a total surprise with Marie. The Time Machine theme also ran deep in this series, lots of plotting in the dark, the peons trying to take down the elite, and the series, particularly the BCS series, using time shifts to lay out the story of how someone became such a prick, and Saul was a big one. In the end, Jimmy got what he deserved despite the attempts by those who actually loved him, to get him in the right path because they saw the talent in him.
Balls of steel but, he was blinded by his own ego. A bittersweet, but satisfying ending, to a helluva a show. We are gonna miss you Jimmy/Saul.
PS: interesting no specific song used to wrap up the series, unlike Breaking Bad.