My review on AirVPN.

[Xp5 1]

If someone else wanted a decent VPN, I'd direct them to this. So far of a month usage, AirVPN never created any issues.
The port forwarding instruction was a bit confusing, as I was not sure If I should configure port forwarding in my router,
Maybe more detailed steps would be appreciated (the answer is don't configure, VPN will work without router configs)
About speeds, I always reach around 5/6 my speed (to keep it simple, I reach max speed).

Using WireGuard, in a Linux machine.
A happy customer, will renew subscription.

Edit: Oh, my bad. I forgot to credit AirVPN staffs, they are helpful in forums.

Edited ... by Xp5
Credit

[fsy 27]

in the faq: https://airvpn.org/faq/port_forwarding