A few question about PS Now on PC

[Vor]

First thread in a while :)

I used to be a PS fanboy but moved to Nintendo since Wii days. Anyway I want to try PS Now to play some exclusive but I have a few question.

1. What are the currently supported region? What if I play outside the supported region?

2. How to play the subscription without credit card? Can I use PSN wallet?

3. My average connection speed is around 6 Mbps. Is it sufficient?

4. Is it worth?

And I'm not sure to post this in Gaming Discussion or Sony Discussion.