Mine came in the mail yesterday. It's a bit shorter than the 1100mAh version, and a bit fatter, too. It's comfortable in the hand, and is decent looking with a CE5 on it. It makes it a bit easier to stealth
vape when needed.
I like the fact that it will show you it's remaining battery life via the colored led in the switch. I also like the rubberized coating...not only does it protect the battery from scratches, it makes it grip a bit better in your hand.
I'm on my 2nd day with it, and it's still has power. I'm a chain vaper, so the previous statement means a lot to me. All in all, this is a decent eGo battery.