Only thing i can think of is PIA offers proxy, ad blocking dns and has been proven in us courts not to keep logs
In terms of security I'm going to quote this article by torrentfreak https://torrentfreak.com/which-vpn-services-keep-you-anonymous-in-2019/
Who would you trust with your data more based of the answers given?
Question: 11. Are any of your VPN servers hosted by third parties? If so, what measures do you take to prevent those partners from snooping on any inbound and/or outbound traffic? Do you use your own DNS servers?
PIA
Airvpn: