Hey Andrew, we started building it in 2012. The concept is similar as you say. The most relevant difference is the ontology: our ontology is very specific to what-to-wear needs, theirs isn't. Thanks
I wouldn't be so sure about them not having the "what-to-wear" ontology. I worked with them a few years ago and they had a pretty long and comprehensive list of these categorical webs. It's a core area of focus for them.
Just a heads up.