I worked on a project with around 20 developers using knockout (with two lead developers essentially writing their own framework as we went) and it was a ridicu

I worked on a project with around 20 developers using knockout (with two lead developers essentially writing their own framework as we went) and it was a ridiculous mess. I think it can be a good tool for prototyping, but it is horrible on a large app. You're always changing some observable and having something far far away break completely. React with immutable.js is much better because you really can focus on one component at a time in complete isolation.