I had to take a break from work to just write how awesome this application is. I have used them all: Evernote, OneNote, Quiver, Bear. Notes App; yet I've always found something that just would not let my workflow just...well...flow.
I found this App through a very Quora email digest when I was cleaning my inbox and man I am glad I did. It's been 6+ months and I have not looked back.
I use this application to document everything I do, especially code and code snippets that I use for web development. It works incredibly well for that and it pushes to other devices flawlessly (Bear requires a subscription for this).
I like how you just organise things with workspaces and then you can define your hierarchy as you deem necessary. Moving things around, turning blocks into other things, etc. is super easy, barely an inconvenience.
The code syntax for any programming language you use is just heaven, and it copies and pastes just as nice (I remember I spent hour debugging things only to find out OneNote was pasting curly double quotes at some point).
The integration with other platforms is amazing and constantly expanding. I have inserted Gists from GitHub into my documentation and it displays beautifully.
The free version has everything I need, but this is one of those apps to which I am happy to give my money as it has made my life so much simpler!