I lost money on cex.  the price of gh/s keeps dropping and dropping.  The only rise is only on a short term day chart.   was at .06 getting in......seen it go down .02 on bad news about China a few weeks back. Sold at .044 taking a loss.

Didn't feel the reward was good enough for how much money you would need to spend in order to have enough gh/s power to make it worthwhile.  

for me......cex was a bust.  There are better mining contracts out there. The mining payout was pretty low when you have to pay 3% pool fees.

I thought the concept was a great idea for a noob who had no mining equipment (yet).  I learned my lesson and took my losses and moved onto bigger and better things with my own mining equipment.

$$HAPPY MINING$$