It was a good final part of this story. It didn't really have the feel of a "finale" as it was pretty much all (great) action with last week's having most of the emotion. But really more than any other Clone Wars arc these final four episodes are best viewed all as one movie length story. The animation, music and acting were the best the show has ever been. Really wish we'd get more in this style (maybe we will, who knows!)
Thoughts on the final season as a whole: First arc was a fairly typical Clone Wars arc. It had the usual problems all these four episode arc have (well, not the last one) of kind of lacking in story in the middle but it was a very entertaining action adventure. The only thing I find strange is Filoni's claim that this was the story he needed to tell as the final arc for the clone troopers. The story where Fives discovered Order 66 would have been a far more effective final clone story, in my opinion, and would have led perfectly into the events of the final arc. Even the arc where the Dexter Jettster Jedi was killing clones I think would have worked far better as a final story for them. It was good definitely but I'm not sure why it was so important it was made.
The arc with Ahsoka and the sister was sadly the biggest disappointiment of the season. I was all for what I imagined this story would be: seeing how Ahsoka would be away from the Jedi, what kind of a person she'd be without them, what she'd get up to. But I don't think we really got that? It felt like the sisters having an adventure with Ahsoka just along for the ride. Yeah she heard about how the Jedi caused the deathsof their parents but she'd already decided the Jedi weren't all that great even before that. The third episode ended up being a waste of time because the fourth episode ignored all its character development. The whole arc seemed to be building up to the moment where the sisters found out Ahsoka was a Jedi but when they finally did...they didn't really care that much? The whole story ended up having no bearing on the final arc. It was still pretty good just because Ahsoka's such a good character, the sisters were decent characters, there was some good action, great animation, and the evil Ben Quadinaros people, but it just felt like a big missed opportunity to me.
Both of those arcs should have been three episodes long so we could have got a two part story about General Grievous going on a date with Sy Snootles.
Final four I have no complaints: as mentioned above it was movie quality stuff, the best of Clone Wars and just these four episodes justified bringing the show back. Just that freaking Maul/Ashoka duel last week justified bringing it back.