I have bought JIOFi device on 3 of january, 2017 and I have recharged it only for two time with Rs.399 plan. its internet speed is extremly slow, just say that I have wasted my 800 Rs on it ok .ok Rs.798. I used Jiofi on my computer using USB cable. I am fond of playing online multiplayer games.but online games requires a good ping ( means, a good connection of internet with continous connection . no up and down in the connection).but JIOFIs connection is not good . It fluctuates very much, cant even login in to games. Instead of that its costumer service is good enough. They provide a good consumer service 24*7. When the device is kept ON all that internet data remaing flushes out.remaing with the continous 64 kbps speed. At this time I must say that its 64 kbps speed is much more reliable than 2 mbps. It can connects upto 31 devices . I havent checked that much of devices but with 2 devices no internet is working in either of the devices.
Its connecting radius is too low .upto 4 metre with only one signal on your mobile phone.