I am using vodafone number from past 5 years or more... since it changed from hutch to vodafone, some services have been spoilt. its one of the most expensive operator in Mumbai. They don’t have much tariffs and promotional offers. only advantage is its network is vary good and their customer care executive are supportive...they have always helped me instantly when any problem arrived and also re payed me money they have deducted by mistake within 1 hr...other operators gives vary good tariffs but network is always an issue..since it is vodafone, they have stopped producing user friendly tariffs.
If your priority is network go for vodafone and if you priority is good tariffs you better select other operator.