Hotstar is very usefull in my case because I can watch any channel according ro my interest eventhough it shows some unwanted adds.
But while streaming online events such as cricket there will be some delay.
One good thing about hotstar is that we can download it when we have internet available and can be watch later according to our interest and time availability.
It does not take much space in ur phone.
The drawbacks are
1 . some shows are premium and we have to pay for it
Some shows appear only after a week ot has aired.
Adds in between shows
But averall its helpfull