Not what I mean, your final haste rating should be;
Your current haste rating * 1.5 (SotWS) * Trinket Effect
My fault for bad wording. That's a lot less powerful than say;
Final haste % = 1.xx*1.05*trinket effect
---------- Post added 2013-06-30 at 02:05 AM ----------
The only real overpowered part of that trinket is the bonus to critical healing, but that's really only for us and druids because other classes are going to verge on the point of every big heal being an overheal with it equipped.