Looting this one yesterday and discussing with my fellow druid raider (priest was still on trial) I decided to pick this one because our druid thought its only on direct heals as said.

The most noticable 'feature' this trinket has, is its proc. Next to being a nice rejuv animation on your target it also procs on every jump of my chain heal. Yes ! its brilliant on close tank healing or rogue stuff. Timing it right increases its use even more.