On the plus side, your future pension is not dependent on the success of your employer, a much larger crisis (as in Greece now) is required before your retirement is in danger.
On the minus side, it's dependent on the success and long-term planning of the country, and any kind of early retirement may be impossible/harshly penalized.
Personally I would prefer to handle it on my own, but on the whole I really appreciate that everyone is guaranteed a stable and healthy retirement.