Caldera, pre SCO, was actually pretty sold 'professional' desktop OS. A place I worked at used it and we had a bunch of developers and researchers with Windows

Caldera, pre SCO, was actually pretty sold 'professional' desktop OS. A place I worked at used it and we had a bunch of developers and researchers with Windows backgrounds that were using Linux for the first time and they all found it a pretty smooth and polished desktop and development experience over all.