Reliance is always game changer in network communicaton.First they introduced reliance cdma which was a huge sucess even comman man stated using mobile with reliance cdma connection. Now a step ahead they have introduced 4G connection ( jio) which is also a huge sucess and also made revelution in smartphone industry.They have capitalized the market across india by introducing free calls, free sms & free data which is one of kind newly introduced. Sound quality is good.
They have introduced lyf smartphones along with 4g connection. Some drawbacks in jio is that they dont have enough tower installed which is causing call drops, network issue .etc.This issue may be caused due to overloading of customers on a daily basis.Anyway I personaly like to use jio connection other than different network available.