I skim read the responses, but i would say if you feel at a disadvantage, get a keyboard and mouse for the PS4 for raiding and use the controller for the rest of the time. alternatively like me get it for the PS4 and PC then switch depending on the task, Steam have it on offer i think as well.

You can also use an Ipad with the PS4 app as a keyboard but this does mean your picking up and putting down the controller quite a bit.