Material-UI or Semantic UI for reactJS? Responsive and learning curve should be keep in mind!

I am starting a project from scratch and I want any one of this two to be used . So I really dont to fall in the learning hole of any . I want a responsive , professional looking website. I f possible I can use simply skeleton or bootstrap for responsiveness cause I think both of them is having grid system for mobile view...and I think I really dont want that