I hate the fact that to use a DS4 on X1..you have to play wired.
Not that it really "bothers" me, but I don't like having a stiff cable attached to a usb dongle attached into my x1 usb port causing downward tension.
You can play wirelessly with the DS4(and DS3), you just need to get a bluetooth adapter.
Same with the Xbox controllers if you have the xbox wireless adapter.
And someone else mentioned the titan one being the "newest version". That is wrong. Titan One is a competitor and isn't supported as well, in my opinion. In terms of communication, fixes, and community requested features.
I don't really know the whole situation, but apparently the titan one was essentially stolen by a former controllermax employee and renamed.
And there are two controllermax models. The first one from 2014 that was mentioned and the new 2015 version, The differences are the 2014 version does not fit the PS4 and the 2015 version does. Along with other mechanical improvements inside.
Anyways...
Everything you can think of is supported. You can turn the light off the DS4, turn off vibration, remap buttons, download gamepacks(essentially like controller mods that don't butcher your controller).
Hell, you can even map the sixaxis controls to control the left analog stick steering, so if you wanted to play Forza and steer by moving your dualshock, you could do just that.
I never used fight sticks or mouse/keyboard, so I don't know how efficient they are, but they do have a list of all compatible controllers on their website somewhere. And if you happen to have one that isn't, make a post on their forum and they're generally pretty quick at fixing it. I made a post about 2 years ago about the device not working with PS2 games on the PS3 and they made a patch fixing it in less than 3 days. So great support in my experience.