I am using Jio since 5sep, 2017 and I have been using calling and internet facility regularly.First of all I will talk about the calling facility of the jio. Calling facility of jio is good but not many times. It some time didnt connect to the govt. authorised telecom company which is BSNL. This is the 1st issue in jio telecom company.2nd is the internet facility of the jio. Firstly when jio came they provided 4gb data per day till 31 dec., 2016 . When there was 4gb/day the speed of the internet was slow . But after when happy new year offer came the speed incresed by 10-15% . But finally when summer surprise or jio dhan dhana dhan came and people have to recharge then the speed increased by 30-40% .3. They also introduced some apps like Jio music, play, Tv, money and many more. Jio money also gives cashback and many people enjoy the benefit. Thats all if you like my review then comment