I bought Jio in the preview offer.
It worked well for about a month. And how its become horrible . worse than 2G.
Any downlowad( even if its a 2 MB document) starts and then takes 30 min for 100 kb. And then fails.
Made multiple complaints to customer care. Seem they are not able to figure out as they could not do anything in 10 days.
Am going to stop using Jio after the preview offer. I would advise anyone against leaving their current data connection and going for Jio.