I feel that Cleric heals are a bit too strong for what there able to do, reminds me of (sorry for saying this) WoW during BC, where Druids has such survivability that there were jokes 'How do you kill a Drood? Bring 4 of your friends, and jump him while soloing group quests.' since I'm still in the 30s bracket I cannot say for higher brackets, but it just seems silly when I roll Sab (and I'm saying things are OP...) but If I take 1.5 seconds per action (Time Bomb, Blastx5, Frag, Anni, Det (can drop someone to 25% health roughly 13 seconds) and say I timed it all perfectly and get the damage to go off in a 3 second window I can understand someone surviving just me, but when I had multiple times from 20-30 that a cleric takes that burst and in 2-3 seconds it's back at full health with 2+ people on him, not just once but constantly until they wait us out till back up comes (5 minutes in Codex... at the Codex). Im not saying there healing should be nerf'd at all levels, but it seems like at lower levels heals are a bit to strong for 1v1 2v1 or sometimes even 3v1.
Clerics can heal all debuffs to my knowledge (poisons, bleeds, curses, magic) so healing debuffs should not be a massive issue since they can bubble... twice if they go Pur/Drood. I guess since I only played Cleric till 18 in beta, and seeing how they are to fight against it feels like a losing battle so I avoid them and target the squishier warriors. I do see Clerics hit top Damage, Healing, KB, and Kills in Warfronts, sometimes its the same Cleric hitting all 4... I'll stop ranting though, I guess I'm trying to see what others think, and if they found any way to combat Clerics at level 10-40.