Yeah, the Disney+ app on Amazon Fire is kind of wonky - it'll load the wallpaper but not the interface to watch the video 75% of the time.
I did get through it. I feel like they could have had some music playing in the cantina (not the token Modal Nodes song from EpIV, mind) - it was just really quiet - it felt incomplete. All the reused OT SW sound bytes were a little off-putting. Like the Garindan (whatever that species is) - do they only say the same four-five lines? Same for the huttese-speaking door droid - although, I guess "Kwite bee duza" means "Just one moment." But still.
I like IG-11. It really made the droid seem like a capable assassin (or bounty-hunting) droid.
Bummer that the episodes are getting staggered releases. I guess they don't want all of the SW fandom binging the series during the 7 day trial and then jettisoning the monthly subscription.
I'll give it a chance - not too impressed so far, but not bad for a pilot, either.