I've been following it and I'm psyched at Thrawn's appearance! Of all the old EU characters to add, this was the best! I hope, too, that the guy on Thrawn's right when he stands in the doorway (facing us) is Captain Pellaeon. That would be a nice touch.
The Rebels have gone against mostly doofuses so far (like the Inquisitors in season 2), so I'm happy to see them get a real challenge.
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"You have a responsibility to consider all sides of a problem and a responsibility to make a judgment and a responsibility to care for all involved." --Ian Danskin