Iam using this till they sponsored the offer of free 4 g internet and till iam using it now this jio gives more offers at good rates. The signal quality is good and even every areas it works well. It gives me 2 mb per second in my home. It works only on 4 g phones and it gives us free calls too some complain about calling problem in jio sim. But it’s solved in phones which have volte enabled.