UPDATE to my previous post:
Even though I used to use a tree up to 3 levels deep, I've found a way to reorganize my notes to where this is no longer necessary. So the current way myNotes works is pretty cool, I just needed to rethink how I did a few things.
After paying for and using it every day for awhile now, I've found only one main thing I would improve:
Often when pasting text from somewhere else into myNotes, it has this annoying habbit of maintaining formatting, causing me to have to go to Edit->Paste And Match Style ... it would be nice if I could set in config to ALWAYS match current style.
Other than that, wonderful software I use every day. I just hope the data is super-stable and secure, as well as easy to back up?