Pros
- A completely open source build making it very versatile and well supported.
- High level of encryption (1024bit).
- If your VPN connection is severed (logout/disconnect), then your network stops until you log back in or turn off OpenVPN.
Cons
- Complex and lengthy setup process for new users.
- More overhead due to higher encryption.
- Blocked by strict proxies (i.e. work, school, open networks, etc...).