This is pretty cool. I was hoping to see the "menubar shows rating" feature as compact as the default single star, my menubar is so crowded.
Perhaps, since the star is 5-pointed, there might be a way to use a single star to reflect the rating - empty/outline (no rating), 2-4 points fill the star incrementally, then full for 5 stars? Each click on the star increases the fill/rating, cycling back to empty in case you change your mind. Just a thought.
Perhaps the 1/2 stars should be optional, that menu is pretty long.