Jio is like a need of everyone if you are mobile user you should have jio . now a days everybody is using jio due to its great service and offers . As we know the jio is new company so there is some network issue but overall network is working fine . The best part of jio is the internet speed the net is working awesome its very fast its giving atleast 5 MB P/s so the internet is very fast and the the free applications are working fine it is must have service for everyone .The customer service is very good you can say the best in the country you can connect your call to customer care in 1 min and they will help you with your concern. currently the service is free so I am not able to tell you about billing .