I use vodafone since last 3 years.my experience about vodafone is superb.network of Vodafone is powerful and also available at any location in India even small town also.internet speed of Vodafone is mind blowing.it gives very fast of surfing and downloading.internet speed is fast even in small villages.so internet and calling network are so strong.customer care executive are more helpful.if you register any complaints it solves by customer executive within 24 hours.so customer service is good and fast.they offer very low budget plans.they dont charges any extra charges.