I will have reservations about the show until its over. Call me old school but I am big on Luke being Last of the Old, First of the New. I have always disliked the random survivor Jedi from the Old Order that get brought up, so, it may be in bad taste, but I want Ahsoka, Kanan and Ezra to die in the end.
That said, the show is awesome and I love it. They did Vader very, very well, they did the first season, very, very well. I haven't seen the new episode (Probably won't until Monday) but I could get behind Rex joining the Crew (Flash Backs of "Good Soldiers Follow Orders"), but he would be a little unnecessary. Really the main thing I really wanna see from this series is TIE Pilot Solo. I wanna see the Imperial Side of Han Solo some. Even if it is legit just one episode, I want to see it happen.
Wedge (Praises to the Slayer of Stars) is another I would like to see introduced.