Reviewers see ActivityWatch as a practical way to get a clear, local record of how computer time is actually spent, helping with productivity, habit control, and comparing plans with reality. They repeatedly praise its flexible time views, useful analytics, cross-device syncing, Linux support, AFK exclusion, and privacy-focused local storage. Several also like that it works out of the box, though setup can feel less straightforward for some, showing a small tension around ease of use. The main recurring downside is that Android stability, data visualization, and filter customization still need work.