This setting will find friendly the most of the riders who are seeking for mid travel stability specially in corners and if they need stiffer fork before take off's (jump transitions). Also it suits the riders on the heavier side.
Soft ( Intermediate ):
This setting is suitable to riders who prefer more plushness reaching even at higher levels of the stroke, but still have advantage of progressiveness towards the stroke end.
The main benefits of this Boost flow Piston conversion is an increased sensitivity in first inch of travel. That means that the fork is very sensitive / plush on small harsh bumps, just like roots and loose rocks. In other words the front wheel keeps at ground with better traction. This results in a less vibration transferred on handlebars, which prevents the pain in the forearm. Also other advantage is when the fork gets through its travel it is progressive towards the end of the stroke, where rider will find the wanted support platform rather bottom outs.
Check how its done here