I used Private Internet Access for a long time. When they merged with Kape Technologies (resulting in the ludicrous situation of having Mark Karpelès as their CTO) I lost all faith in them and immediately switched to Mullvad.
Having used both, I can tell you that Mullvad is far better designed. Mullvad has only account numbers, no usernames, emails or passwords. Creating an account is one click. Mullvad has an all-in-one VPN check page. Mullvad provides easy preconfigured OpenVPN configurations for any of their servers (you don't have to add your credentials among other things; as I understand PIA still just offers an "openvpn.zip" with a bunch of files you have to edit, which is error prone.) Mullvad is based in Sweden, not America.
All of these things provide much better privacy than PIA. And on top of that I don't recall any scandals with Mullvad than resemble the merger with Kape or the current situation with Freenode. These events should make you question whether you should continue to trust PIA.