Our 11-year old Whirlpool Gold above-stove microwave quit last night. From what I've read the problem is either the circuit board or magnetron. This appliance was nothing to write home about...three magnetrons in the first 14 months after we got it (the third was installed by me because Whirlpool refused) and one new front panel trim piece that fell off onto my head (well-known safety issue and replaced for free). We don't need anything fancy because we're selling the house soon. Any ideas on what replacement microwave to buy or which to avoid would be appreciated.

Thanks,
Harold