Before Jio launched I am a Airtal user but now I am a Jio and Airtal both user.
But I use my jio sim for net and calling purpose.There is one more bad thing I personally see in Airtal is they send many messages for promoting new movies and many messages for offers.
Airtal has a good network in every state of India but It has very expensive offers.
Jio is cheap than Airtal in calling and data services.
I am not talling that Airtal is bad SIM card network I am just telling that please dont send messages continuous.
( Note: -Airtal is a very old company and OLD IS GOLD)