There's an FAQ entry in the Algo readme about OpenVPN. The biggest tradeoff is that OpenVPN is a little bit easier to setup at the detriment of inheriting all the insecurities of SSL and the requirement to maintain 3rd party software (security updates etc).
Googling for IPSec leaves me a bit befuddled; can anyone explain the differences / tradeoffs?
If I felt like setting my personal laptop to always use an IPSec VPN for day-to-day computing, what downsides would I experience?