I am using idea from 5 years. Though it is costly but services provided by it is excellent. You may can trust it network fully because it want break it any time.
All of my friends with this idea sim are very much satisfied. Its 4g experience is just awesome. I think it has better network challenge still remain active but idea had promised to give some free gb to experience 4g which it has just launched in many cities. I was thinking that I will get atleast some reward by it but I dont other than this my problem idea network is awesome.