Product review (1 stars): DO NOT BUY -- Double oven with quirks, and too loud - Kitchen Aid KEBS207BSS
KitchenAid 30" Architect Series II True Convection Stainless Steel 5.0 Cu. Ft. Double Oven:  The ovens are beautiful with large viewing windows.  The electronic control panel is a bit confusing; not too intuitive.  Since we installed it a couple of months ago, we have baked cookies (came out well) but not used it yet for any major cooking.

The most annoying feature is the noise level.  Compared to our old electric oven (which was not a convection oven), this one has a fan running pretty much all the time.  The noise from this fan is quite annoying since it starts as soon as you turn the oven on and it stays on during cooling (after you turned the oven off) - this means for any cooking, you will be listening to the fan for cooking time plus at least 30 minutes....

The second annoying feature is the preheating time - this is a large oven and takes a while to preheat.  Be aware.  Most cooking temperatures take 15-20 minutes to reach.  Sometimes longer.  This requires a lot of planning.  We haven't used any advanced features such as preheat on demand at a preset time.

The third bad feature is that you can't start cooking correctly until the oven reaches your target temperature.  If you are in a hurry and put stuff in too soon, the oven will be at a very high and will cook the the product incorrectly (soft in the middle with hard crust) (maybe this oven must go through a high temperature peak as it preheats to get there faster).

For a pretty high-end oven, these features mean I can't recommend it to my friends.

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UPDATE After >6 months of use -- the preheating time is too long, terrible.  The fan stays on for too long after cooking - very annoying.  The main problem is you CANNOT CHANGE THE TEMPERATURE WITHOUT TURNING OFF THE OVEN!!  How bizarre is that?  I have been arguing with KitchenAid "Customer Un-support" people and they told me that the "feature" is to "change temperature, you must turn off the oven".  The technician that visited me told me that every house he goes to reports the same issues (too long to heat up, fan stays on for too long, can't change temperature without turning off the oven) -- all with these nice ovens with the blue interior.  Very pretty but non-functional.  Stay away from this appliance.  KitchenAid claims the oven is doing all this ("bad stuff") "by design".  They won't offer a fix or another model.  I guess they have decided to cover their eyes and ears about this model...  DO NOT BUY THIS FAULTY PRODUCT...... I am going to small claims - the only route left...