My numbers were still solid. It is a bit of a change in playstyle and will require some adjustment. HP gain is slower is less mana efficient since you will be casting holy radiance more. And yes at times I would find my self spamming the HS button when it was still on cooldown, not as much as some since I did try out the 2 and 4 set T15 a few times before the patch. You could possibly add a weak aura or other tracker for HS cooldown to help you until you get reacquainted with the longer cooldown.