I have an Airtel 4g sim but it does not give me the network or speed one should get for 4G as being advertised. The network has problem sometimes it goes directly from LTE to 2G or 3g which upsets you when doing work from home or watching hd movie online. The customer care is almost beyond your reach telepbonically embedded in IVR, but the email support is responsive and professional but long delay in getting any resolution. In terms of charges Airtel is competitive and I would say cheaper than Jio as I use 3gb per day plan which costs 100 more on Jio plus require other recharges to call other network. Overall, good pricing but the core 4g experience is missing many times and you would be using 3g or 2g.