I really like the results of the auto layout most of the times - with just a few seconds on top I can get clear layouts. But with many connections its placement of nodes as close as possible to each other, the connections are not readable. Would be great if it could leave some padding around the nodes, where we could read the wires.
Note that changing the values will affect the current modifier.
If you click on the [>>] button, you can set the current value as default for FUTURE modifiers!