Has anyone ever implemented services from helloretail.com together with Optimizely Commerce?

if yes,
What site? (so i can glance at it)
What is your experience?
Which part did you use?
Anything other good to know?

Hello Retail (formerly known as addwish) is the fully managed service for personalizing the complete e-commerce shopping experience. It provides automatically generated product recommendations, dynamic search, capture more conversions through smart triggers, personalized content for newsletters and emails, dynamic retargeting and personalized display banners.