Avoid "Private Internet Access" at all costs. It's run by Kape Technologies, the company behind multiple VPN providers like ExpressVPN and CyberGhost.

https://en.wikipedia.org/wiki/Kape_Technologies

If you read their legal agreements, you'll notice they are rather questionable.

Also, don't use a VPN from a Chinese provider. As far as I'm aware, Chinese companies are heavily regulated and legally required to share data with the Chinese government without a warrant or similar order.

I suggest taking a look at this chart, which might be helpful: https://vpn.techlore.tech/

Depends on what you need a VPN for.

I don't know them but they seems to be from Estonia marketing themselves for evading censorship. Are you in a country that censor VPN? If not why do you think the tradeoff might be worth? The 2 hops should have an impact on bandwidth and latency and there is probably no port forwarding.

Using a VPN is just moving your trust from your ISP to the VPN. Why would you trust a VPN you know nothing about giving them access to all your internet traffic?