I give it a try! 
BTW: ROI of 333days made it necessary to be online every 8h!!!
...or I'm wrong???
You can be online once in 40 hours to collect all production.BTW: ROI of 333days made it necessary to be online every 8h!!!
...or I'm wrong???"ROI of 333days" -
There was never a ROI of 333 days. Your calculations are totally wrong.
"Withdrawal fee is 0.0005 BTC" is a mistake on you withdraw-page?
The bitcoin system can take this fee. Ore-mine does not take any fees at all.