Inverter microwaves cook great too , much better power control than the cycle time power control of old
an inverter micro should give you 3-5 years of trouble free service , when it does give trouble expect to replace it
If i was not attached to my vintage stuff i would have an inverter micro myself
3-5 years? That seems like a pretty lousy outlook for replacing a 20-year-old microwave. Where are the workhorses that simply go, kind of like a basic cold-warm-hot clothes washer?