Ranked in these QuestionsQuestion Ranking
Pro Teaches you to avoid wasting time on figuring out what to do next
A fair bit of time gets spent either switching between tasks, or figuring out what to work on. Getting Things Done teaches you the importance of narrowing your focus and having a plan of where to spend your time.
Pro Breaks everything down into steps
A lot of different techniques are introduced (such as a filing system and planner) which can be overwhelming. The author breaks everything down into smaller steps that can be completed immediately.
Con Does not consider technology
Getting Things Done, including the most recent update (2015), includes very little about incorporating technology into the process (such as tracking apps) that could speed up the process.
Con Repetitive, infomercial-like writing style
A large majority of the book is filler writing, repeating the few initial lessons in various different wordings.