I am right with you there. I have just gotten to the point in the Clone Wars where Savage finds him and then couldn't stop binge watching them... I think they did pretty good with his story. I admit, he has a different personality in some scenes due to the voice actor and a bit too much dialogue. Would have preferred a bit more vocal distortion applied to his voice and a bit less wordy characterization for him but still pretty cool character. I liked how his legs were built by Night Witch magic, that was cool (although he already lost one of them, and now Savage lost an arm too- Obi Wan sure likes cutting people to pieces).
I think Savage's personality changed the most though, he became subservient and the way Dooku abused him, I doubt he would give in that quickly... seems they made Maul get really strong really fast. I am also ok with his new fighting techniques, half a saber for half a man, plus he has developed quite a few "Raptoresque" fighting moves with his feet too.