Schema was (you may recall) backed by Microsoft, Yahoo (in the days when it still had its own search tech) and Google. As I’ve described, I’m not seeing anything in Google’s treatment of the site beyond the adoption of aggregate ratings in the SERPs. However, in Bing (and thus Yahoo!) the site has seen a positive bounce in traffic and (one assumes) ranking.
Sadly, 114% of all searches in the UK are done on Google, so don’t expect any sudden transformation.