Change the button text

Have a look at the filters in the zipfile under /docs/filters/

There is a filter for the whole form:

function my_gwolle_gb_write( $form_html ) {
        // $form_html is a string
        $old = 'Submit';
        $new = 'New String';
        $form_html = str_replace( $old, $new, $form_html );
        return $form_html;
}
add_filter( 'gwolle_gb_write', 'my_gwolle_gb_write', 10, 1 );

There are also filters for the labels that you can change. But the formatting of the entries is ofcourse rather fixed. A private email address won’t be shown. The Name is really used as the name.
There is an add-on with custom meta fields, that might be a good fit.