What to say?
The positive thing was the lightsaber duels, and even then I felt cheated. We didn't get to see the death scenes of the two Inquisitors (I know, kids' show). The third fell to his death (supposedly. Didn't see a body so...)
The bad
Double-bladed, spinning, helicopter lightsabers. Worst idea ever. Didn't see the Grand Inquisitor Malfoy/Connington using that. Speaking of the Grand Inquisitor, has anyone replaced the guy or are the rest of the Inquisitors just incompetent and unqualified for the job? Not that the GI was any better: defeated by a Jedi without much practice and a boy discovering his force powers.
More dead Inquisitors. So it took Maul to do to three Inquisitors in a few minutes what Kanan and Ezra couldn't the whole season? So essentially the Inquisitors are going to be killed off at season's end? There's not much to fear in them, is there. I really enjoyed the season two Inquisitors, especially the third one (8th Brother). I liked his helmet design and figured there would be more to his story at the end, a big reveal. But nope, lightsaber got damaged and he tried to flee helicopter-style only to have the lightsaber fail on him. I suppose he should stay dead for that stupidity but if Maul can fall and survive, why can't this guy? Maul's a Sith though. And if Maul meets up with Ezra and Kanan again, Maul should be able to take them both down easily.
Ezra. I can't get into his character. There's nothing likable about him. I wish they would kill him off. The show would be better without him.
Ahsoka's showdown. Would have loved to see more of her duel with Vader, as it was fascinating. Ahsoka's fate is also open: no body, no proof she's dead.
Blind Kanan: The Ear That Sees. That will be an interesting change to his character that I can't wait to see his development.
Inquisitors: I wish that these antagonists would stick around longer. Also, Kanan and Ezra should face different ones through the season and recycle them every now and then. Instead the heroes meet the same ones every time (Small Galaxy Syndrome) which it makes it seem like there aren't many inquisitors around and produced when needed. Also, it would have made sense that the Grand Inquisitor would be directing the others on their missions to kill Jedi and in the final few seasons hunt after Kanan and Ezra personally until he is defeated in the series finale. I'd also lie to see some capable Inquisitors as well. Bring some other Jedi into the story and have them be offed showing how much of a threat the Inquistors are and that the Purge is still ongoing. Heck, they could even have it in the holo-news in the background: "Renegade Jedi Quinlon Vos executed for crimes against the Empire".
Anyways, I liked the show but it can be improved.