Same here, I purchased a Terraminer IV in November 2013 for $5999 + UK Import taxes and shipping (Early January Batch)
1.6TH (now 1.2Th as 1 asic is dead)
2050 Watts (nearly double the power costs although that has reduced a little as 1 a sic is dead)
I would like some for of compensation for this, but I cannot even get a response from Cointerra.
Aside from the late delivery 2 months late (It was delivered mid March so I missed out on around 16BTC) This has been the worst experience with a manufacturer that I have ever had.
Please tell me how to join in the class action suit.
G

You are lucky that you got anything at all. Look at the Blackarrow situation. Over 7 months late and X3 miners finally started shipping in late August to only have the company ask people to stop mining due to fire issues. You think Cointerra is bad? I bet many in the Blackarrow boat wish they were in your situation.