This is my experience with Disney+ Hotstar in uae after being subscribed for 1 month+:

   1) Extreme stuttering when streaming online with my Samsung Galaxy Tab S5e. Issue goes away when I download and watch them offline — however not all shows are available for offline download. No issues so far with my Samsung S20+.
   2) The service doesn't remember correctly where you stopped watching and will not resume correctly either on the same device or another device. Only works like 25% of the time.
   3) Lack of profile so movie/shows preferences are all over the place and history gets all jumbled up.
   4) The lack of English subtitles on many English shows are also an inexcusable offense as there are many people who are hearing-impaired and would like to read subtitles in English.

The only saving grace for the app is its world-class contents but their app and overall interface needs a major rework in order to be competitive in the market.
I will definitely stop after my 3 months of subscription are up and stay off of them until either they figure out a way to overhaul everything, or just switch to the proper Disney+ experience instead which I heard has a lot less problems.