I had spent about 30 minutes updating my profile data by going from one tab to the next and then pressed save and close button, only to find that the last tab I was on (about me) was the only info saved. 25 of those 30 minutes was spent filling in my education (i.e. which required some research to get names and date right), which was not added.
One may miss the "Save and Continue" option, like me, as it is natural to just go from one tab to another expecting some basic level data preservation until final Save is selected.
At least add a warning when users select the next tab, or make an automatic "Save and Continue" the default.
Posted Help request #5044.