Here is my experience using NORD  VPN for 3 months:

I cannot measure how good is their hiding capability, but their software is not working well at all.

Pros:

PC:
Intrnet killswith works

Android
Android servers work well when using OPEN VPN software

Cons:

PC:
- Often unable to connect /Constantly disconnects. Pain in the ass!  (Wifi is working good)
- Will not choose a working server automatically, have to to manually
- Will not show servers by their speed  or if their online rather by country name only
- Software gives few options, is bulky and graphical. Made for dumb user

Android:
- software often unable to connect/constantly disconnects

Verdict: Not recommended