Product review (1 stars): High Tech, Poor Quality, No Warranty Support
Purchased this oven as a $2500 builder option, and part of a GE Profile wall oven tandem.  The oven's microwave/heatlamp with convection cooked food fast, and was especially useful for baked potatoes or small dishes such as appetizers that one would normally only use a regular oven for.  The cooking sensor also worked well, cooking vegetables perfectly.

The honeymoon lasted for 6 months.

The oven displayed an "F3" light accompanied by a constant beeping.  This is apparently a control panel fault, common to recent GE microwaves.  This completely disabled the oven from operation.  The only way to stop the beeping was to either physically remove the oven or trip the Circuit Breaker (which also shut off our conventional, working oven).  Rumor has it that the cause of the fault is a $0.14 thermal resistor made in Korea that GE doesn't stock.  This part is apparently failing beyond specification.  Have heard of some owners removing this resistor from the circuit (connecting the wires), but this removes a safety mechanism.

After 6 weeks of tring to get GE to live up to their warranty, we are at wits end.  GE does not perform its own warranty service, but contracts out to local appliance service companies.  Each time GE processed a waranty service referral, it took 5 days, at the end of which the referral company REFUSED TO PERFORM GE WARRANTY WORK!  Apparently GE has a bad habit of not paying these service companies in a timely manner.  After 5 REFERRALS no one will do the work.  The warranty is essentially useless.

Our neighbors have the same oven with the same problem, which has remained unresolved after 4 MONTHS.  Finally GE agreed to cut them a check for $1600 (note that the GE website price is $2200 and we paid the builder $2500).  I bet GE finds a way to come out and pick up the oven after they send a check.

If offered replacement money, our choices are to buy another Advantium (the Edsel of microwaves) and risk the same nightmare, or buy another brand which won't fit our cabinetry cutout and won't match the adjacent GE profile appliances.

Thanks GE.  You have encouraged me to buy foreign.  Or look for a class action suit.