I love Mullvad, but if you need P2P its not the best option. If you just need a VPN, though, its amazing. Today I just switched to AirVPN and am running it on Arch through Eddie. Have my qbittorrent set up to only allow connections through Eddie and just forwarded my first port. I'm very happy with it.
I think the only downside is that I could get Mullvad for 5eur a month on a month by month basis. AirVPN is 7eur or 15eur for three months, so I have to lock into the three months to get the same price.