Reliance Jio has made India addicted with its preview offers. But the fact is that they are be fooling us with its offers in the name of high speed 4g. Be it a metropolitan city like Kolkata or the small town of India, Jio is actually cheating people with the name of Jio 4g. I have been using Jio since the time they did not launch preview offers for all. Most of the time, the network works like 3g. Inside the room there is hardly any network. Speed is very poor. People are getting the sim for free but I request you to think twice to avail this sim. In the name of Jio 4g voice, they are offering HD voice calls, but you cant hear the person clearly if you call using this apps. I have called to its customer care many a times. My experience is very poor because they avoid us with preview offers and every thing will be fine after commercially launched. Then why should you set this sim in the 1 slot? specially, for the small town and rural people, dont waste your time with this Jio 4g because it actually provides you 2g or sometimes 3g not 4g( 135 mbps means 4g).