A new feature the old SOTE didn't have -as well as many other graphic adventures- has been added: the autosave. Its usefulness is evident, you don't have to worry about losing your progresses in case the system hangs up, while you still can save the game every time you need to go back to a particular story point.
No pre-defined checkpoints, just a quick autosave every time you enter a game room or every 10 minutes you stay in a room AND you're not idle having a coffee...