I thoroughly enjoyed the series. It's a real testament to where Lucasfilm animation is today compared to when the Clone Wars movie came out back in 2008. The animation is so rich and the stories are incredibly well developed. And it was interesting to see the difference between Ahsoka's story and Dooku's.
Some of the little things that struck me? Casting Janina Gavankar as Ahsoka's mother in "Life & Death". It's good seeing Janina back in a Star Wars role. I thought she really helped develop Iden Versio pretty well along with Inferno Squadron for Battlefront II. And having Clancy Brown voice yet ANOTHER Star Wars animated character in the Sixth Brother was a nice touch, too.
The Dooku story arc was pretty powerful. It finally helped to flesh out who he was, what motivated him and how he fell. And now a line like the one Ki-Adi-Mundi said about Dooku in AOTC makes far more sense - "He's a political idealist, not a murderer". Well, at least a couple of Jedi Masters might beg to differ with that. But his story across his first two episodes suggests that maybe he was right, and the Jedi Order and it's rigidity were part of the problem. But going to the Dark Lord of the Sith as someone who might bring about Justice? That's just naive and misguided.
I hope that we can get another batch of Tales of the Jedi episodes down the line. It would be nice to see Obi-Wan with a younger Anakin prior to the events of the Clone Wars. The possibilities for where the concept could go are pretty wide open.