So far I know and have experienced the Auto save function do it's work on specific places in the game. I save frequently myself .

For example : if you go to a Flying Fortress area and you wish to enter a gate of a fortress for the first time then the auto save comes up if you try to enter that gate. And if the fortress has more than 1 gate, the auto save comes up be each gate you met for the first time (luckely only he first time) !
For me it interrupt the fun of a battle, the pleasure of exploring the game world a little bit . That's not funny ... frown

I hope next Divinity game has an auto save I can set off myself in the option menu of the game !
( ! suggestion, suggestion ... for Larian Studios !)


On 7th of february 2015 : I start a new adventure in the Divinity world of Original Sin,
it's a Fantastic Freaking Fabulous Funny ... it's my All Time Favorite One !