Here is my latest store based on nopCommerce v4.0
Still working on it mostly with content, but overall it's done. (old browsers support = false)
I'm really happy with the platform as it's really flexible, I was able to achieve lot of things that on other platforms it simply takes crazy development effort.
If anyone interested in some techniques that I've used you're welcome to ask :)
Thanks to nopCommerce Team! awesome job guys!