I would be cautious about a blanket OK.

Twelve or fourteen years ago, Reliance entered the mobile voice connectivity business with some disruptive changes to the way the telecom firms worked in India. Eventually, Reliance's telecom division was structurally partitioned away as Reliance Infocom within the family, and after a time gap of 10 years it is now Reliance, under the brand name Jio.  

Even twelve years ago, the scale of operations and the technology choices were impressive. What Reliance appears to do now replicates a similar jump in technology and standards which has a nation wide impact. It is true that this company is not hesitant to invest in a submarine network, or to bring in current technologies (4G) and it is true that the bandwidth offered in most places (as far as I know or sense) is high by existing Indian telecom standards. This is of value to India. 

But I would be cautious before rushing into a raving review. A telecom company is a telecom company.  Jio came up with introductory offers that offered Internet for 3 months almost free. Its prices for data are lower than the competitors and prompted competitors to lower prices. I would see this as a pricing strategy for the introductory phase, that would eventually accumulate a subscriber base of 300 million or more users in India, each of whom would gradually pay recurrent and increasing subscription / data charges, say an average of $5 per month per connection for basic usage, which would then translate to a billion dollar or two per month of revenues from basic mobile voice/data services alone, not counting fiber to home revenues or corporate revenues or value added revenues. So, its initial policy of attractively low prices is not really charity. 

My concerns (others from India may have more observations or concerns):

1. What is actually a "Plan"?  Why do telecom firms offer confusing plans ?  Why not a more straightforward straight line, uniform billing process?

2. What is unseen behind the phone company's pricing plan and relatively liberal data bundle?

( I recently took a post paid plan that offered 25 GB of data for $5 a month, at present there is no other post-paid plan, when data limit is reached, the incremental charges amount to about 30 cents per GB, which is surprisingly low by current industry practices, but still why isn't pro rata? And why is there is there a limit of $2 or $3 of incremental data after which the data connection abruptly stopped working? Reliance pushed text warnings for every one or two cents of additional usage, I tried an additional advance deposit of $25 even after which the messages persisted. The phone company appeared to have total and complete control over my phone, the push messages bypassed all phone / Operating System and Application settings on my android phone, no changes in phone or O/S or app settings stopped the irritating messages, and my email messages that asked them how and why they had so much control over my phone settings went unanswered.  Probably, what was bundled with its low prices and relatively high bandwidth was a compromise on the ownership of the user's device. )

3. 2. ( I don't know) What are their roaming charges for voice and data when the phone is to be used overseas?

4.  Small charges, often invisible, often too low to dispute, from a hundred million users, every month, add up to a huge sum of money, akin to the manner in which banks accumulate revenues unnoticed. Does its pricing model already include or likely to include in future,  invisible small charges for incremental revenues in excess of straight line revenues?

5.  Does the policy environment in the past and at present make it selectively easier for Reliance to install and deploy infrastructure so extensively? With a more open and far more uniform policy environment, would India have attracted other Telecom firms, other business houses or even a new class of investors to bring about these many or more innovations?

6.  Is this article, even by a miniscule degree of chance, preemptive coverage to project an impression that private telecom operators fulfil all the communication needs satisfactorily and that Community Networks are not really relevant in India?

Sivasubramanian M