I was using idea from last year.it is best mobile operator .network avilablity is best.allmost 95% of cities, town and village of my state idea network is avilable.when other networks are not avilable or sometime shows out of covrage, idea show full network.call drop, network prob, balance deduction these type of prob I never faced with idea.the beat thing in idea is his internet speed and data charges.if you are living in area where 3g network is avilable you will get 3g speed at cost of 2g.3g speed is awesome you can download aq gb's movie in 20-30 minutes.watch youtube without buffring.
I am living in bhopal and idea allready start 4g in my city and gave 1 gb data free for user.4g speed is best.you can download 1gb data with in 5-10 min.4g recharge is also very cheap.in 150 rs idea is giving 1 gb 4g data and at 248 2gb data.in this prise other network are giving 1gb 3g data.so idea is best in all fields.network, internet speed.recharges etc all are best.i am happy with my network.