It is a good sim but it doesnot provide the best service as airtel provides.it is free but it is not usefull because it doesnt give proper service only 1gb limit is ok but network is not available at remote places of the country and I surely think that the owner of jio should get rid of this problemand what I insist is if he wants to make his sim as best one then he must launch 3g sim because a new 4g phone is not affordable by all the poor and if he really wants to give4g service he must launch 4g phone at less rate