I'm happily syncing org-mode with git, so I might not be your target market, but I consider every new note-taking app as I don't think that anyone's got it perfect yet.
My constructive feedback is solely the cost. I get that the servers are expensive and I actually do prefer to pay rather than worry that the lights of my note-taking app might go out some day. But $8 per month is far too steep. For $1 per month I'd sign up and feel like I'm getting a bargain, and tell my friends. For $2 per month I'd seriously consider signing up but it's not a given. Any more than that, and I can't really consider the app.
My constructive feedback is solely the cost. I get that the servers are expensive and I actually do prefer to pay rather than worry that the lights of my note-taking app might go out some day. But $8 per month is far too steep. For $1 per month I'd sign up and feel like I'm getting a bargain, and tell my friends. For $2 per month I'd seriously consider signing up but it's not a given. Any more than that, and I can't really consider the app.