Is jawbone 2/assasin really that good?

Ok, so right now I have a motorola h680 that was on sale for $30.

Ever since I have been interested in a bluetooth headset (and finally purchasing one) I can't help but notice people with them, especially working concession at the theaters.

I hear everyone on craigslist proclaiming that jawbone is the best bluetooth headset.

I have a chance to buy the new one, brand new, never used with everything for $50.

Now, I was going to buy the H12 for $50 and see if it was better then the h680 so I figure I might as well spend some money and get the headset that is supposedly the best out there.

So my main question is:

How much better is the jawbone then other bluetooth headsets? To mine? To the H12? Is there some sort of comparison somewhere?