I like LW enough, yes some things are a pity, that it is not tanky enough, or that it is not debuff, but it is only a support, not a pure heal. I like to use it in PvP, or against Karen, and with the 115 set, I tried to buff it a bit with the Requiem set. (This is purely my opinion as a player, but the LW is fine as it is)
Also, I manage to heal correctly, I have the time to put all the buffs + the Holy skill during the skills cd (while I cast instant)