With 1300 watts of power and versatile functionality, the sleek and silver Panasonic NN-H664MF microwave is as hard-working as it is good-looking. Powerful and roomy, the microwave is a family-size model that delivers consistent and even results on all kinds of foods. Most important among its engineering features is the Inverter power system. While many microwaves create lower power levels by firing full-tilt then letting food sit while the clock winds down, Inverter models actually fine-tune power output according to your programming. As a result, food heats more evenly, with a minimum of icy centers and hot spots. This model includes 10 Inverter power levels, as well as Inverter turbo defrost for speedier and more thorough defrosting of frozen meats, soups, and desserts. In addition, the Genius sensor function lets you cook up to 15 categories of food with the pressing of a single key. Other convenient controls include sensor reheat, quick minute, less/more, keep warm, and popcorn keys. Equipped with a straightforward touchpad control panel, the microwave includes a child lock for safety and a detailed booklet of instructions, cooking guidelines, and recipes. It measures 11-7/8 by 20-3/8 by 15-15/16 inches and carries a one-year warranty on parts and labor and a five-year warranty on the magnetron tube. --Emily Bedard