I’ve been using Mullvad since the past few years and I’ve no complaints. The fact that the recent Mozilla VPN is based on Mullvad makes me more confident in my decision.
Mullvad has contributed to Wireguard that secures me the confidence in their service. Also the experience of creating an account without my name and email address is the best. Theh only thing left is the billing message (I use credit card) has prefix: VPN*
Do you get decent speeds from Mullvad? Friends were reporting that they moved back to PIA due to worse speeds on Mullvad. That and the lack of a chrome extension (which is occasionally useful) has prevented me from switching away from PIA even if I'm unhappy about being in business with Karpeles and Kape.
I just fired it up and connected to an endpoint in my city, I have a 600mps download pipe and hit 150mbps with default settings and about 275mbps with wireguard selected in the mullvad app. Switching to TCP in the mullvad app didn't change my result enough to notice.
I didn't try other servers/cities to get more information.
I am getting great speed out of Mullvad, usable for everything, except frame critical gaming. Even video streaming usually works fine. I would say I get approximately 3/4 of my normal speed when using VPN.
Honestly, hack is a big word for what it really was... no user data stolen and they closed the server. I still use it and would recommend it, just for the speeds and the easy interface.