Karn, I just got my Echo 1300mah on Monday and I'm also wowed.
I have had one cigarette today, maybe four yesterday, six the day before, and I am not missing ANYTHING about cigs. Isn't this miraculous? I have white-knuckled every other attempt at cutting down or quitting. I didn't actually start doing this with the intention of quitting, just cutting down. But here I am!
However, I am noticing how bad my car and the clothes in my closet smell, which is depressing.
And I'm spending a TON of $$ on supplies of all kinds, but that will taper off once I feel certain I don't need to run out for a pack of smokes.