Rated 3 out of 5 stars

Won't use it because:

1) can't place the icon wherever i want
in the mail toolbar.

2) doesn't remember position & size,
the main window is placed absurdly over the email's body. I tried to reduce the window & put it to the bottom right corner, but i can't do that every time i create a note.

This review is for a previous version of the add-on (3.0.0).