Panasonic NN-SU66LS 1100W Countertop Microwave - Genius Sensor Cook

Our review of the Panasonic NN-SU66LS finds it is a solid countertop microwave for families, singles, and small households who want faster, hands-off cooking. The single biggest reason to buy is the Genius Sensor cook and reheat system, which automatically sets power and time to deliver consistently cooked food without guesswork. With 1100W of power and a 1.3 cu ft interior the unit balances a compact footprint with useful capacity, making it a practical daily workhorse in kitchens where space and speed both matter.

Key Features

• Genius Sensor technology: Automatically senses moisture and adjusts cooking time so food is more evenly heated and reduces overcooking risk.
• 1100 watts power: Higher wattage shortens cook and reheat cycles for faster meal preparation compared with lower-powered countertop models.
• 1.3 cu ft interior: Offers enough room for medium plates and casseroles while keeping a minimal countertop footprint of 11.8H x 21.2W x 17.4D in.
• Seven Auto/Sensor Cook presets: One-touch settings for potatoes, fresh and frozen vegetables, frozen pizza and entrees, and casseroles simplify common cooking tasks.
• Auto Defrost and Popcorn modes: Auto Defrost removes guesswork for frozen items and three popcorn power options help avoid unpopped kernels or burning.
• Keep Warm function: Keeps soups, sauces and prepared sides warm until serving without overcooking them.

Who It's For

This Panasonic microwave is best for someone who wants reliable, automated cooking rather than manual programming. Small families, busy professionals, and dorm residents will appreciate the sensor cook and reheat convenience and the combination of high wattage with a roomy 1.3 cu ft interior.

Shoppers who need built-in trim kit compatibility, commercial-grade durability, or a very large capacity oven should look elsewhere; this model is a countertop unit designed for everyday home use where a compact footprint and smart presets are priorities.

Pros & Cons

Pros

• Genius Sensor technology delivers more consistent heating without manual time adjustments.
• 1100W power cooks and reheats faster than many entry-level microwaves.
• Compact exterior size provides good interior capacity for its footprint.
• One-touch presets and Auto Defrost simplify routine tasks like popcorn and frozen entrees.

Cons

• Some users report mixed results with heat consistency and occasional loud operation, so noise and performance vary by unit.
• Control buttons have a different layout than some competitors and may feel unconventional to new users.

Specifications

Brand	Panasonic
Model	NN-SU66LS
Power	1100W
Capacity	1.3 cu ft
Exterior dimensions	11.8 in H x 21.2 in W x 17.4 in D
Turntable	12.4 in
Finish	Stainless steel

Our Verdict

The Panasonic NN-SU66LS is a practical countertop microwave for most home kitchens because it pairs sensor cooking with 1100W power and a useful 1.3 cu ft interior, delivering faster meals and fewer guesswork moments. It represents good value for shoppers who want automated cooking presets and a compact footprint, though buyers sensitive to noise or who require very large capacity should consider alternatives.

Frequently Asked Questions

Does the microwave have an auto defrost function?
Yes. The unit includes Auto Defrost that adjusts time based on weight and type to simplify thawing frozen foods.

How large is the interior and turntable?
The interior capacity is 1.3 cu ft with a 12.4 in turntable, giving space for medium plates and small casserole dishes.

Is the Genius Sensor reliable for reheating leftovers?
For most users the Genius Sensor provides consistent reheating by sensing moisture, though a minority report mixed heat results depending on food type.