In short the Raspberry Pi acts as a router with VPN, and it uses openvpn protocol, rsa keys of 2048 bit and port 69. Can be used with up to 10 devices (phone, tv, pc, game console xD )
I've ordered the Pre-configured memory from them, so that everything was already pre-set for automatic activation, I had just connected the Wire hehe
For me is a good idea because:
1) I live abroad.. then the VPN is very useful to me
2) I'm not using a normal router.. but the Raspberry pi that will cover ALL my devices
3) just for security, an encrypted connection is always better than a public (but this is just a my opinion)
I hope this can Help someone here.