The set-up is difficult due to high level of complexity for the data feeds. It is not compatible with our on-search provider due to the complexity of the XML output file.
Was not able to syndicate component reviews for bundle items listed on other site. Also, we could not associate a review of a product type to a similar item (example a different color), so if we discontinued a color, we lost that review content even though its relevant.
It is difficult to analyze the accuracy of the matching.