Despite the picture on Amazon, there is no CD included - there is a note about documentation being updated and eco-friendly on a website. Unfortunately, the tutorials are hosted on YouTube and FaceBook and are unavailable to corporate users who typically live behind a firewall which blocks such things. It's unfortunate that not even a cheat-sheet paper is included. These seem to be semi-pro level products, but the support is not. For $159, they should still be including the CD.
Having said that, the parts are made well and fit well on the flash. The mounting is ingenious and works perfectly on my Olympus FL-50R flashes - secure and not wobbly.
The results are as expected - if you haven't used a flash diffuser before, you will like it a lot and will probably never use straight flash again. I also own the Puffer - an excellent diffuser for pop-up flashes, so this kit helps out with the larger flashes, either on-camera or mounted on a tripod.