I USED ITS LIKE 117 GB data. When jio was revealed in india its internet speed was very fast. Everyone wanted to have one of these sim in their mobile but as the time passed the speed of decreased. And now its running on 128kbps which is not good for people like me. Its concept was good making people get one of these sim , giving them a free trial and now charging rupees for the recharge of the sim. Jio has already introduced its many applications. To get the free sim we have to download its all application i.e. why I gave it one star. Coming to usefulness I have downloaded many games and apps and movie in full hd & 4k and pc games. It was very useful.