Really great: I like its speed and layout. The color search is a nice touch. My only complaint is about the quality/quantity of results. When I searched for "pulp art" I only see _3_ results whereas Etsy itself finds 531.
http://www.etsy.com/search_results.php?search_query=pulp+art
The results: I'm working on that. This is more like the "MVSP" version as in Minimum Viable Side Project.