Better Shaders / Shader Stacking for FX?

Has anyone here used anything like Better Shaders before? Shader stacking looks super useful, but wondering about performance and actual practicality during production. How does it compare against using an uber shader? How is compatability across different platforms like mobile + console? It’s an entirely new concept to me so just trying to figure out what peoples experience with this sort of thing is. Looks like it beats out copy/pasting chunks of code across shaders at first glance.