Having used Material UI in the turbulent days of v1, I can't say I've had a good experience. - Custom styling with JSS was an underdocumented nightmare - The

Having used Material UI in the turbulent days of v1, I can't say I've had a good experience. - Custom styling with JSS was an underdocumented nightmare - The Grid system had many gotchas, especially with flexible columns in flexbox - "Private" components had to be used or replaced in Table components to enable sorting - JSS generated classnames changed if you included material-ui-based components in a separate library I'm not really trying to harp on the developers here, but I've had to re-implement basically all the material-ui components I've had to use, because it was infeasible to update the library due to the amount of changes required.