I'm using menus frequently but I struggle choosing the right option from the first time, because submenus hide immediately after the mouse leaves the row with menu title. Then I need to concentrate and move the mouse to the left following almost straight line to keep the submenu on.
The green line shows the mouse path that keeps submenu opened. The yellow line shows natural mouse movement. When it crosses Export's rectangle the submenu disappears immediately and you have to repeat the steps again and again and again:
I think it will improve user experience a lot.