The post discusses the 'Stats' application for macOS, which acts as a system monitor that displays CPU, GPU, memory, and network metrics directly in the menu bar. Users have expressed their positive experiences with 'Stats', highlighting its usefulness for tracking system performance and identifying resource hogs. Some comments suggest it closely resembles 'iStat Menus', with debates over its functionality compared to this popular competitor. Mixed reactions include appreciation for the immediate visibility of resource usage and playful comparisons to other monitoring apps like 'MenuMeters' and 'iPulse'. Some users noted performance issues related to CPU usage, particularly with Bluetooth processes. Overall, the tool fills a perceived gap in macOS's native monitoring capabilities, though it requires adjustments for optimal user experience and on-boarding.