Hello:
While I understand the thinking behind the autosave feature of Marketo, I am not a fan. I have grown used to hitting the save button and I enjoy hitting the save button because the I know I have saved my work in the way that I wanted to save it. I really wish there was a way to TURN OFF the AUTOSAVE functionality. That way you can experiment with something and close it out if you do not wish to save.
The designer on my team has mentioned that there should also be an undo button as well, but I believe the AUTOSAVE functionality would have to be disabled.
Thanks!