Hi Dlath,
I have not had any problem with ADE7758 because i am designing now my new hardware with ADE7758. Before i finish the new pcb, i just wanted to ask you about chip reset mechanism.
Is there any possibility that this chip can not respond to any spi communication ?
In that case i can not reset this chip anymore and my control system gets blocked, which is undesirable situation. For such a situations i can only use a hardware power reset, which turns off and turns on again the power of the chip.
I think this chip will also work very well like others but as an engineer i must think about all worse cases 
I am still waiting for ADE7758 chips as sample from analog devices.
See you again
Evren