I bought one of those and its the best deal I've had yet.
Were some problems getting going though, mainly because the box was not set to default on purchace.
So first  fight your way thro' the setup and set to "default" when you find it.
This will set up to the correct transponder.
Then adjust aerial slightly in the correct direction according to compass and you will see the quality signal when you have found the correct transponder.
Adjust elevation and directions in very gradual amounts until the best quality signal is achieved.
Finally twist the LNB(clockwise?) to get best Q.
Then its done. 
I achieved 70% Q.
Tony.
                
 1941Tony
                
 November 2010