I was also really excited about The Wheel of Time series that came out on Prime (especially since Sanderson was consulting on it), but it really disapointed for the same reasons. The Expanse was spot on though. I hope someone picks the show back up so they can finish out the series.
The early episodes of the Expanse were easily the best Sci-Fi TV I can remember watching. Was still good towards the end but definitely didn't keep me as glued to the screen as the first series.
Yeah. I read that they went over budget and had to rewrite the last couple episodes to finish our season 6. It was good but felt more rushed and incomplete.