Well, I have FINALLY gotten these new CE2 cartomizers. I have been reading the threads, and even commented when the threads first started. I have seen the ups and downs, and waited for others to be the guinea pigs.
Well, I got some of these from Ken at Ken's Box Mods.
All I can say is that these things rock!! The vapor production is incredible, and the ones in my first pack did not have any primer. I put in some juice using the little tube thing on my trusty syringe, and they vape like a champ.
I have had no leaking, no burning, and have "chain vaped" them for a while. I was shocked when I first took a drag. It almost choked me.

SO MUCH VAPOR!! I have vaped 5 different types of KR808 cartos, and 6 types of 510 cartos, and these are by FAR so far the best. It is like dripping without the hassle.
Hopefully these can be refilled many times, I only got 15 in this order, and if some American supplier get them back in stock I would not mind paying close to $10.00 a pack for them. They are worth it to me if they will last me 6-8 fills each, whick I presume very doable.
Just wanted to let yo guys know, and will do a formal review in the review section in a couple of days once I have more experience with them.
BTW mine are 510 standard. And yes, the ones Ken had are ceramic.
Edit: they do not work on my pointy post 901-510 adapter. One of the guys earlier said they might not because of the "too wide" slot, and they are correct. They thread flawlessly on my Hello, eGo, Janty Stick, and 306. I will order a few adapters to see which ones work when I make another order.