Quite plainly, i couldn´t give anything what you think about it.
Is it overpriced price per GH? yes.
More than other hosted gh? no. As such, the price seems fair and will most likely mirror the one per GH on cex.
Cex.io is even more bonkers, Ill give you that. You'd also have to be an idiot to buy hosted mining at cointerra, but they charge $3M/PH for 12 months or 5.11 BTC/TH per year
Peta mining is currently 4.66 BTC/TH
but you have to factor in the loan 538 BTC /1150TH =0.47 BTC/TH
and you have to factor in hosting fees 73 BTC/week / 1150TH * 52 weeks= 3.3 BTC/TH/year
Total 4.66 + 0.47 + 3.3 = 8.43 BTC/ TH/year
Heck, its actually even more expensive than cex.io!
CEX.IO: 7.4 BTC/TH + maintenance cost 0.26 USD/GHS/month = 3120 USD/TH/year = 5,2 BTC (@600 USD/BTC)