I wrote an article recently going over (almost) everything the DS4 is capable of with DS4Windows, some notes on various alternative controllers, and various suggestions. Along with that a basic setup guide covering most of the settings, mapping options, and a starter profile with some ideas for where to go from there.

The Best Controller for PC Enthusiasts: The PS4’s Dualshock 4 - TechFreshness[www.techfreshness.com]

I'd like to eventually add to that with info on Mac and Linux setups, as well as coverage of the nearly released Steam Controller that I can't wait to try out. Any feedback or suggestions would be greatly appreciated!