I am using idea sim since 4 tera.i never complain about its network and sound clearly.its network come in every place and never lacking network.i am also using this sim roaming to.In roaming it’s network brilliant and it’s net speed also good in 2g, 3g & 4g.I love it a lot.but every think is not perfect.and in that place there are also some weekness.In idea there calling rate to much not a common man and if you think about to activate any plain to make call rate low but those plain also too much expensive.its net plain also too much ezpensive.i am preferring you to use Jio and Airtel they are giving you to many plain and if you don’t know Jio give you unlimited every think for December.