As per the market research Vodafone is the second biggest network provider in India.I have been using vodafone since 5 years.It covers almost each and every corner of India.Its signals are powerful and there is very good clarity of sound.As far as network coverage is concerned, it gives a very tough competition to the market leader Airtel.When it comes to customer service it lacks behind Airtel.Vodafone takes much time to resolve your issues, especially those regarding your data issues.Vodafones call and data charges are very fair but the main problem is their data speed.Vodafone data speed is very less compared to other network providers like Airtel, Idea, Jio etc.In all, one can say that Vodafone is the best for those who mainly use their mobile for calling but for online users it is not the good pick.