Do I lose some technical benefit or is my code less reliable if I use material-css directly in my JSX rather than using a JSX specific library such as material-ui or react-toolbox? Or, conversely, do I gain performance, reliability or other measurable benefit by using a JSX library such as material-ui or react-toolbox rather than just putting materialize-css code in my JSX?
When writing React components, I find I can use materialize-css directly in my JSX:
<div className="row">
<div className="blue lighten-5 col s12 m1 l1">1</div>
</div>
<a className="waves-effect waves-light btn">Stuff</a>
Or I can use JSX specific library such as material-ui:
import RaisedButton from 'material-ui/RaisedButton';
...
<RaisedButton label="Submit" type="submit" primary={true} style={style}/>
I'm not asking "Which is your favorite library?". Nor am I asking "What is the difference in output between RaisedButton and a button with this style: 'waves-effect waves-light btn'.
I'm asking: do I gain technical benefits or increased reliability if I use material-ui or some similar JSX specific library compared to just putting materialize-css code in my JSX? If there are benefits or risks involved then what are they? What should I be looking for in the way of pitfalls?