I am going to share my opinion about JioTv while showing some merits and demerits of this Application.
Merits:
Clarity of JioTv is awesome. Full HD channels can be played without facing lots of buffering. But for this you need good internet connection. I recommend jio network as I find it to be superfast. However if one has lower-end smartphone or his internet speed is not so good he can change the quality of video from high to medium to low.
Jio Tv has almost all the channels that a dth or dish tv possesses. It has 400+ tv channels.
Jio tv allows us to watch the missed shows or episodes of last 7 days.
JioTv can be used in 10 languages including English, hindi, marathi etc.
Demerits:
The biggest problem of JioTv is that one can not play any of the STAR channels i.e., Star plus, Star Sports, Star Gold, Star Utsav etc. If one click on this channel , he will be redirected or push to the playStore to download Hotstar to watch these channels.
I have faced this last few days back when India vs pakistan cricket match going on and I thought I can watch star sports 1 in JioTv but when I tried to play it push me to download Hotstar. Then I learned that STar network channels can not be played in JioTv.
I do not know about others but I found that JioTv consumes more data compared to hotstar.
Overall it is an average app. But hotstar is the best.