Yes, I got both the 900 and the 900C. I like them both a LOT more than my ego and rivas for several reasons. 1. I prefer cartridges to the hassel of cartomizers (and I refuse to use the drip, vape, drip, vape, drip, vape all day method) and the cartridge holds about 22 drops of e-liquid - which is wonderful and a LOT more than any other standard cartridge. 2. It is a about a 1/16th of an inch bigger in diameter than the ego/rivas, which though only a little bit, makes it much more comfortable to hold. 3. The area where the button/switch is *much* nicer - larger with a slight groove to it. 4. The button is a bit bigger and of much better quality than the eGO. 5. I got the black and it has a very interesting feel to it. It's metal, but it feels a bit soft - it's hard to describe, but it feels great in the hand. I got mine when you could only get them in China, so it's great the companies in the us of a are finally beginning to carry them. Having all three - the XPower, riva and ego, I can say by all ways of comparing them that the XPower wins by a mile. Hope this helps.