I have a faithful combination microwave/convection oven that has given me great service for over 10 years. Now that we're remodeling the kitchen in our new house and buying new appliances, it's time to replace it. We looked at available models and found one with a feature that we've never seen before -- a combination that also provides the alternative of high speed cooking with halogen light. Does anyone have experience with these? Should I go for this (GE Advantium is the brand we saw) or stick with the microwave/convection?