The stat and move speed penalty have always made these a complete Turbine stick in the eye joke to me.
Tell me...when you are sitting there chugging away with these "gems" doesn't your survivability/DPS/DCs and everything else that relies on stats suffer to the point of debilitation?
Do you build AND gear your toon with the -10 stat penalty taken into consideration?
Or do you suck it up, gimp yourself by drinking them and just be completely OK with it?