I am using jio service from last 2 months its working well for me I will give it five star I will mention some advantages 1) Free 4G till 31st march 2) Free calling till 31st march 3) SMS and video calling are also free till 31st of march now some limitations are there 1) Network range is not as good as airtel idea etc networks 2) 4G data speed is not very high as compared to other operators 3) The sim is compatible to only 4G enabled devices 4) Some user faces calling problem but it is solved now . So overall it is a best choice for internet lovers and use as much as you can till 31st march