Excellent - eventually
5/5
Arrived on time as predicted. Took it out of the box - and the door wouldn't open. The linkage between the button and the lock seemed to have dropped off.
Called Panasonic, who quickly determined it needed to be replaced.
Called AO, who arranged a replacement delivery in two days.
New one arrived on time - and it's wonderful.
Effective heating, with no dead times on low power, easy chaining of powers and times, the Chaos Defrost seems to work very well.
My only complaint so far is that whatever time I program in, when I open the door to get the item out, the handle is always at the back, i.e. it seems that on 10 second time resolution, the turntable always makes N+½ revolutions. Perhaps Panasonic could alter the programming in future so the turntable always makes an integer number of revolutions?