It is claimed that the robot behaved in ways that are similar to observed C. elegans. Stimulation of the nose stopped forward motion. Touching the anterior and posterior touch sensors made the robot move forward and back accordingly. Stimulating the food sensor made the robot move forward.As for the claim about the worm's mind... well we don't know much about a worm's mind, so how could we know if this model captures it?
The key point is that there was no programming or learning involved to create the behaviors. The connectome of the worm was mapped and implemented as a software system and the behaviors emerge.
The connectome may only consist of 302 neurons but it is self-stimulating and it is difficult to understand how it works - but it does.
The simulation project is run by Tim Busbice at The Connectome Engine. Another story on the simulation at the New Scientist site "First digital animal will be perfect copy of real worm."