I like it. It’s a very nice approach.
Comparing both sites, I’d say that both situations serve as an introduction to the site content. The site you mentioned shows that introduction in a more straightforward manner, but the infographic is just another element of the global flow. What I tried to do was to make a more holistic approach in which the cube would serve as unifying element of the whole site content. It serves as a central element in which all the content wraps around.
Just as a side note, I’m not trying to build a company that provides these kind of services. I could have made this with any other type of services. These only appealed more to me. I started doing this for another idea I was working on and this approach just had everything to do with it.