Rectangle earns raves for making window management fast and effortless, especially via customizable keyboard shortcuts. Users say it becomes an immediate mustโinstall on new Macs, praising its reliability, speed, and thoughtful defaults that recall Spectacle. Many highlight how it streamlines multiโmonitor setups and keeps hands on the keyboard, boosting focus and daily workflow. Common wishes: richer documentation, a Linux port, and precise size presets for consistent screenshots. Several note itโs a strong free alternative to paid options, delivering robust control without clutter.