There aren't really any advantages.

You are often expected to work overtime under a responsibility-based system. There is also work in the middle of the night, but overtime pay seems to be something I've never seen. You are required to use your annual leave—aren't you supposed to decide for yourself when to take it? Even when you can finally enjoy a day off, you may still be called in to handle customer issues. If you don't deal with them, just wait to be scolded for lacking a sense of responsibility or to receive a disciplinary warning when you return to work.