In the package is everything really contain what you need to get started and several attempts. For instructions: 1. The idea behind the guide is good and the tests ok. 2. A little more explanation why precisely this resistance or this component has to be incorporating here or there would be nice. 3. The images are very small and the resolution is not good. Straight pins on the Raspberry Pi are not clear. 4. The T-Cobbler is not used in the examples, but would have certainly made the pictures more clearly.
Tip: On the last page of the manual is again a bigger picture with the pinout of the Raspberry Pi.