I run a team of 20 product managers, developers, QA and UX resources. Previously we designed everything ourselves. For our newest platform we tried out Metronic. I cannot overestimate the impact Metronic has had.
It's accelerated development 3x and reduced QA issues by 50%. If you add up the reduced need for design time/resources, the increase in dev speed and the reduction in QA, it's probably saved us $100,000 on this project alone, and I plan to use it for all platforms moving forward.
The flexibility of the design has also allowed us to put out a better looking and working platform, and reduced my headaches by 90%. Thank you KeenThemes!