>lololol. Half of these VPN vendors show up on Kenn White's VPN Hall of Shame for offering unsafe configurations:
having a per-user PSK isn't going to protect you if the protocol is fundamentally broken, which is the case for PPTP/l2tp
having a per-user PSK isn't going to protect you if the protocol is fundamentally broken, which is the case for PPTP/l2tp
For all other uses, Kenn recommends Algo, and I recommend Cloak, neither of which uses PPTP/l2tp.