I am using 4G WiFi router for more than 2 months now. The best part is the speed, the worst part is the network coverage as it is available in some places of Chandigarh. In one room it will work and other room the signal drops. The device also has some issues and needs to be restarted after a while sometimes.
I am using 2000 plan with 40 GB data and I believe its a 5 STAR plan.