Not on PS4, but I've found the default HUD is pretty much fine for most content. A few tweaks here or there for personal preference are all you really need.
That said, I do wonder if I'll have to switch to KB&M for healing harder content. I could use gamepad the entire time for tanking, no problem. But I feel like my potential reaction time with a gamepad is dramatically lowered by the targeting system. This is less of an issue than it could be due to the long GCD, but it's not entirely offset, especially for initial heals or unexpected damage. Especially combined with the massive delay on casting a spell and anything actually happening. I've already used benediction multiple times, had it trigger the long cooldown, and the person dies anyway. That's just not good MMO design. I hope they continue to improve the responsiveness of combat. It's less of a big deal when tanking, but you really feel every microsecond of delay with a healer.
https://i.imgur.com/MlFuEhG.jpg
