I took the Jio sim not because it was giving free data but because I love to try new things and wanted to do network testing. My experience with customer service has been fine. As far as network goes, I believe it is the worst mobile operator available on this planet. The company needs to understand that if it wants to have long term customers who generate revenue for them, they need to work on their network and giving free data can be just a short time attraction for customer. If company wants a single subscriber who has Jio as his primary connection, it needs to concentrate on network and other logistics. Jio got spectrum in 2010, it seems Jio was unprepared at the time of launch. I am not sure what were they doing for good 6 years in terms of laying the network.