I am using idea sim for last one year.its a good mobile operator.the network coverage of idea is very good.i can get signal from all the places.Idea offer us very good tarrif plans.The call charge is very low comparison to other service operators.The internet pack cost is very low.in 58 rs they give 1gb 2g data for one month.i like this plan most.the internet speed is good.the coustomer care of idea is very good they are very helpful they always solve our problems.its a very good mobile operator.