Speed of jio hotspot is very much faster.I can use yesterday hotspot speed is 1 mb to 3 mb p/s battery was also a capable 5 to 6 hours battery should run when you use full hotspot.cost is vey low from other broadbands.Older days ita spped was not so specail but now speed of jio ia very and higher.So I can suggest you to use jio JioFi it is best yaar.Main adavantage is that ambani has announced so many scheme and offer for jio user.
BSNL OR OTHER COMPANY sholud not work properly sometime it can stop or not work and tje cost is also high so yu can use JioFi.