Reviews microdata advice

on this site we have 3 footer widgets with reviews. considering we do not have dates, names, ratings, etc… for these three reviews (just the actual review text itself), is it still beneficial to add microdata to these? and also to all the ones on [URL=‘’]this page?

and if so, would we just reduce it to simply this?

<div itemscope itemtype="">
    <span itemprop="description">This is a sample comment.</span>