I bought a jiofi in december 2016.It was good in speed and the battery backup was also very good.The design is very decent and looks good .But now I am facing battery problem.Now a days the battery drains so fast and also heats up so much than earlier and also take long time to recharge its battery .The speed it provides is good But the main problem is with battery because if the battery doesnt last long how can u use it? Other than battery its good.