If you want a privacy focused VPN then Mullvad is great.
If you want one for torrents then it's no good.

It’s the choice of actually surveilled people and the mentally ill.

From what I know it's considered "better" because it's one of the first to use things like shadowsocks.

Usually ISP can detect you are using a VPN, some countries/isp actively block it.

With obfuscation it looks like normal trafic thus, harder to block or to detect you are using VPN at all.

"Mullvad's Shadowsocks integration is designed to help users bypass internet censorship and restrictive firewalls by routing traffic through obfuscated bridge servers."

So, it's up to you if it matters or not.

I have found more websites refuse to load with Mullvad VPN than when I use Proton VPN. I use Mullvad on my phone since it's the only one that is able to be used while I also use Tailscale VPN at the same time on Android.

It is quite private from what I understand. You don't share email phone and can evrn choose pay through privacy friendly means. The only thing is, it drains a lot of battery on grapheneOS. To an extent that i had stop using it.

Having used PIA in the past, PIA is faster and cheaper but I find it suspicious for various reasons.

Don't expect to use torrents with it

I prefer Windscribe