Actually I think KnC gets more shit than they are worth. They promised to send the Neptune before Q2 end and they still didn't break that promise. They've even doubled everyone's order for FREE something they didn't have to do. What happen to the 400 Jupitors is a little sad, however they seem to take responsibility for that too. Last problem is the refund wish take's some however sending hundreds of thousands of dollars around the world to lot's of different people is not easy. And the refunds seems to be turning up in the end after all!
So don't hate to much on them, they're doing great in my opinion. That the difficulty in bitcoin mining is going up so fast is not really their fault and clearly no one who ordered a Neptune was suspecting that.