In month of december I buy my new samsung on 5 pro 4g phone because of only jio sim. but in my mind their are very question ie jio work properly is it true but at last I use jio o my god its like awesome I am really feel like I am flying wow free calling in ist day my mother talk 2hr and she also feel very happy . its like a diwali bonus for me.its network coverage is grest I mean awesome in last floar or anythere but tower always there its customer service is awesome .all executives talk very politely and I am very happy because till 31 march it is totally free.