As already noted you should use a 3rd party miner otherwise you'll end up with a suspiciously low hash rate. Also be aware that they don't understand the concept of 'confirmed total'... even after the reward is confirmed by the block chain the site still holds your coins as unconfirmed until you reach a certain threshold which you won't find posted on their site anywhere. Not a big deal if you have a high end mining rig but if you are a hobby miner you may never see a payout. Sketchy business practice if you ask me. I e-mailed them and got this response:

"There is a certain confirmation threshold specific for every currency upon reaching which your balance gets ready to be confirmed.
Here are the thresholds for the most popular currencies:
BCN - 20
XMR - 0.005
FCN - 1
QCN - 1
MCN - 1
XDN - 1
AEON - 0.005
DSH - 0.1
INF8 - 10
ETH/ETC - 0.000001
BTG - 0.001
ZEC - 0.001"