The animation is excellent but it only really serves to make the series shortcomings sting all the more.
What I was saying earlier is that it's basically Lulu's back, Kallen gets her midseason upgrade, and the Black Knights take Japan in hilariously theatrical fashion. Then the China arc. Then a bunch of stuff happens all at once, then a bunch more stuff happens all at once while the stuff happening all at once is still happening all at once, then a bunch o-Wait! What the FUCK!!! LULU'S MOM IS WHAT!!!!!, then a bunch of stuff happens all at once but none of that matters any more because "IRIS! WHAT AM I FIGHTING FOOOOOOOORRRRR!!!!!", and then it's Lulu and Susaku being BFF for each other and everybody and their brother is out for their heads except ORANGE!!! for some fucking reason. Lulu wins through some "No! It is I
who is behind you!" shenanigans (or did he!?!) and then sacrifices himself to end all wars forever while Susaku becomes Zorro to ride off into the sunset forever.
Some manage to fuck up at the 3rd season... like Nanoha Strikers.
To be fair that was more of too many new characters than anything else.