Well, there’s not many optimal settings for this addon it depends entirely on what you’re doing, the optimal values are already hardcoded, like the particle overlap threshold (0.7) which is the minimum distance between particles relative to their radius.
Other settings are really important but I don’t know how to depict to the user.
For example, smoothing steps.
The cross field could be thought as an image composed of vectors where the pixels are the vertices of the mesh (like vertex colors) then the smoothing average/straighten those directions, Steps is how many times to apply the smooth and Depth is the kernel size, if you set the size tiny you just filter the noise but if you set it bigger, it straightens also the topology.
I made 3 rounds of this smoothing steps because depending on the combinations you can achieve different alignment types.