Just got my new one in today, and I see it's vastly improved from the original (given, I was a beta tester for it) but with my feedback and original shipment feedback, steam craves outstanding customer service took care of all the complaints. Now it's spring loaded, with better atomizers, better connections, better solder points, and better screen and buttons. I'm still building mine, I'm going to try TC using Ti on it. I know it's not technically supposed to work properly, but I want to give it a shot anyway.
As for the chipset, the board comes from the same manufacturer as YiHi, but is not a YiHi branded chip. It's a chip specifically made for steam crave and this mod. Thus not having a model number. But, I wouldn't call it a "clone". It's a good chip, and is pretty smart. Further testing will prove me right or wrong. I immediately noticed the improvements upon opening the package though. I'm also happy it came with two bottles this time rather than one, just in case, plus I can switch juice at will now. Fairly pleased, I recommend picking one up for the price.