Who uses reviews/comments from Cackle? Is it possible to display the rating separately, etc.?

Question

Ratings

Firstly, any feedback about the commenting system itself, and especially Cackle reviews , is interesting.
Secondly, does the API allow you to display separately only the rating for each product / product / post, for example, on the category page (and not in the widget itself on the product page)?
Thirdly, is it possible to display the number of reviews separately for each product also on the category page, say?
Is it possible to style the rating itself using css?
Is there an alternative to Cackle in terms of reviews ?
Site on WordPress :)