From the blog - http://formlabs.com/blog/dashboard-powered-mini-form2-tutorial/
The design for the cover & main body does not allow the cover to open & close cleanly; there needs to be a radius on one or other part. I notice that the picture of the main body shows a radius on the top edge of the body (it also shows the Photon in a different orientation to the one supported by the uploaded model files).
The tank insert does not have the support for the NeoPixel shown in the tutorial. Additionally, the tank insert obstructs movement of the cover unless shoved deeper into the cavity in the body.
The soldering instructions for the NeoPixel will only allow for the LED array to be installed upside down - again, this is not what is shown in the tutorial.
The main code body and the included image of the code also differ - it’s probably a good idea to either change the code or explicitly point out where the username/password/machine name need to be set. Obvious to me, less obvious to others I expect.
There’s no mention of how the speaker is to be installed.