I voted yes, remember its not just a ring for reduced special consumption, it almost works as effectively a free berserker ring, its +3 strength last time i checked and berserker is +4 so not bad to just use in general as well.
Bare in mind for the whole 2x korasi spec trick, its not particularly that easy, you need perfect timing to perform it, even with vigour you can't double spec all the time, you must hit your first spec as the special bar recharges 10% so that on your second spec you actually have enough, its tedious.