I love these things too

It's great to hear from people like you jjrose, that they last a long time too!
Mine came with a primer, so I rinsed them out in warm water, and then gave them a couple dry burns until the coil glowed nice.
Then I did badkolo's PTB mod from the uber-mega-ridiculously-long thread
Replaced the third cap facing the opposite direction (since it has a wider diameter in the center than the middle ring), and stuck on my drip tip.
I am in vaping heaven
Oh, and I had one that got gunky looking on the coil (but worked great still) after a couple days. So I dry burned it while blowing hard a few times until the wick was white and the coil was shiny. Sweet.