The blue material is indeed Shapeways' wax. And whilst the details come out nicely, it is rather fragile. Even the protective cotton layer around it has 'damaged' the texture of the model a bit.
The FXD material is rather interesting, it holds the details well. However, it does need extensive cleaning to get rid of the print lines and thin layer of frosting. Subtle Discord (who runs Dark Works
) also has his experiences with it, check the link to the Dakka thread I posted previously. It's interesting to see how he manages to pull it off.