Product review (1 stars): No Parts
I would caution against Thermador.  We purchased a predecessor version of this model a number of years ago.

We have had a combination wall oven microwave.  Good looking, its operation has been only acceptable.  It is over 12 years old and a knob broke - they discontinued the model and they do not have any replacement parts.  The knobs had nonstandard stems and it took us over a year to find something close to make the oven functional again.  Today we had a heating element go out.  When I called our local service company, before I even stated the problem, they cautioned that they have a terrible time getting any Thermador parts for older models.

When you invest in a high-end product, your expectation is that the manufacturer will stock parts and provide service.  Thermador does not meet this expectation.