This is a integration of Solr with Xcart to make the Xcart search more robust (following Google search). The module has key features as the following:
+Full ajax result page.
+Overlay large image in result page.
+Attribute search weight (Specify which product attribute more significance for search).
With this feature, administrator can set which attribute is more significance than other. Ex: product name is more significance than description.
+Multi stores search support (one index for one store).
+Product attributes filter (In development)
+Performance. (Inherit Solr)
Still in Development