Product review (3 stars): User interface is awful..
The only real problem with the oven is the user interface is awful.  And if there is something that it doesn't like, it will beep at you - loudly, and there is nothing on the display to tell you what it is that it really wants.  It would be nice to be able to turn the beeping off completely as it is quite annoying - especially if you are fighting with the thing while other people are sleeping in the house.

The oven has a nice display screen - it could easily be used to display prompts and error messages.

Just to turn the thing on, I have to cycle between a couple of buttons until I get the right sequence, and the the thing is on.  To me it would seem normal to first hit the on/off button and then select whether I want the upper or lower oven.  But the oven seems to only accept the reverse.

If you want to use the timers, it can't deal with something like "90 minutes".  You have to tell it an hour+30 minutes.  If you try and tell it anything more than 59 minutes, it beeps at you, but there is nothing on the display to tell you why so you have to figure it out on your own.  The people who write the firmware for these things could fix it to automatically convert something like 90 minutes into "1:30", but it doesn't - instead it beeps at you.

This morning I had the task of changing the clocks for daylight savings.  There is no "clock" button on the front, so you have to guess as to what to do.  But all I was able to do was get the thing to beep at me.  I finally gave up and downloaded the manual, and it turns out there is one button you have to hold down for two seconds before it goes into the mode that lets you change the clock.

The designers of these things ought to take a close look at some of the Japanese appliances that are out there.  The microwave had a clock button on it, and I pressed it once and the screen gave me prompts to tell me what to do.  It worked the first time through.  And it didn't beep at me.