I use vodafone from last 2 years for me its a long period as I usually change sim cards of different companies or portability system.Vodafone really have a very strong network, I have never found its network related problem.Also internet speed is so fast compare to other networks. Some times it slows but most of time I feel its fast browsing or downloading speed. It always gives me good offer of power plus, like 1.2p/sec. for 84 days only in rs-22/- and also gives an unbelievable internet offer of 1GB data and Rs30.00 talktime in rs-98/- for 30days If you recharge then it gives those offers frequently so many times.Some time if I dont get that offer then I call customer care regarding that offer and it avails that offer for me.Its customer support executives are also behaves so friendly with customers.One or two times mistakenly my balance was deducted for any service activation which is refunded just after complaint about this to customer care.I feel vodafone always thinks about its customer. It has also a unique Thank you card offer which gives you some talk time or data once per month and as you getting older customer the value of that thank you card gift increases for you.So I recomend every one to use this network.