Below are wrappers for react-final-form and shopify-polaris components which I had to write for my work.
The are simple enough but would save someone at-least a little time. And if i build most componets wrappers, i may put them in an npm package as well to have something plug and play for shopify-polaris and react-final-form integration.
For using, one gotcha is, that you need to specifiy type.
i.e, for textfield:
<Field component={TextFieldAdapter} label='Text Field' name='text-field-name' type='text'/>
But for checkbox, if you don't specify type, it won't render a checkbox properly.
<Field component={CheckboxAdapter} type="checkbox" name='checkbox-name' label='Yes/No'/>
Same should be valid for other types of input fields.
Hope it helps someone save a few minutes. :)