Organize your work and life, finally.
Todoist's marketing headline "Organize your work and life, finally." works well for these reasons:
"Finally" acknowledges the user's ongoing frustration with previous failed attempts at task organization
Covers both "work and life" to position Todoist as a complete solution
The comma before "finally" creates emphasis and acts as a sigh of relief
Appeals to people who have already tried multiple productivity systems without success
The simple and direct language avoids productivity jargon (#hustle) while clearly highlighting the benefit
Creates a sense of hope for potential users (this is huge)