Why do I choose them? Besides the ease of use over multiple platforms, they are the only VPN (I am aware of) that has held up in court that they do not store any logs when asked to handover personal information.
Sources:
[1] https://torrentfreak.com/private-internet-access-no-logging-...
[2] https://www.scribd.com/doc/303226103/Fake-bomb-threat-arrest