Currently, notes don't behave well. I've noted two big problems. First, the default innersep needs to be tweaked so that text doesn't spill over the edge of the note. I'm going to commit a change soon with a default 1 cm inner sep, but maybe a less hard coded means is better.
More problematic, perhaps, is the connection functionality fails. No matter what, connection seems to be always set to "true".
Also, the connection drawing should be checked so that the size of the connection adapts to the size of the note. Sometimes, the "wedge" of the connection is taller than the note's height.