
Lifestack is praised for its ability to optimize meetings and deep work by integrating health data into scheduling. Users appreciate its seamless integration with fitness trackers, which helps analyze energy levels and reduce stress. The app is described as transformative, making it easier to stay organized and maintain healthy habits. While some bugs are noted, they are expected in its early stages. Overall, Lifestack is seen as a cutting-edge tool that enhances productivity and provides a balanced lifestyle.