Yes it is a good sim card to use. You may have heard many people saying about that jio is waste it is not a good sim at all and they may also say you to not use that, but please donot listen to them at all.
Jio has a good network and very cheap internet packs
The class are free in jio sim everytime. Yes when the jio was launch there are high number of call drops but this is not because of them this is because of the other operators who donot connect the jio calls with them.
And another thing if you use a jio sim card you not only get the internet and calls free you also get the chance to use jio applications for free. There are many jio application that you can use for free. One of them us jio tv where you can watch televison online free till 31 St Dec 2017.
I would recommend to use jio to everyone because you are getting class free for life and internet free for 6 months for free.
So it is a good deal