Looking for input...

Every now and then I seek input from the user community.  This is one of those nows.  How are the hints?  Are they helpful?  Is the user interface OK?  I have the "+" at the bottom of several tools that is for adding an entry.  I didn't put the text "add" below the "+" because I thought it was redundant and like the look with just the image.  Was it difficult to figure out?  Any features you'd like to see?