I am using this jio fiber from 3 years.I got JioFiber on the same day I posted this and only paid for the 6-month plan.
I'm getting a solid 30mbps upload and download speed all day and night with no interruptions.I haven't needed to contact their customer service so I can't say anything about that.
Started with the lowest plan in case of issues, but I haven't had any problems since the installation.
But recently wifi disconnect for sometime except this Jio fiber super.