Network coverage: it was available at every corner of india and it comes with great network coverage. Which was the amazing.
Customer service: they are the father of all networks they providing free internet, calls and sms service since last almost two years and everyone loves them
Charges and billing: it cost 0 since two years they providing internet, sms and call service for free but now they will charge 100 for enrollment and rs 10 for a day for unlimited internet , sms and call which was cheap and best