KitchenAid KMBS730SPS Reviews & Ratings by Customers and Consumer Reports

Designed for homeowners who want a true built-in microwave that can also handle everyday “second-oven” tasks, the KitchenAid KMBS730SPS is a 30-inch built-in microwave oven that blends premium fit-and-finish with genuinely useful multi-mode cooking. It’s best suited to busy kitchens where speed matters, but so does getting crisp, evenly finished results without relying solely on a full-size wall oven. What sets KitchenAid apart here is the breadth of cooking capability beyond basic reheating. The dedicated Microwave Air Fry Mode is a practical upgrade for households that frequently crisp frozen snacks, reheat leftovers that typically go soggy, or finish foods with better texture while using less oil than deep frying. For more traditional baking and roasting, microwave convection cooking (with up to a 1200-watt convection element) provides more even browning and more predictable results than microwave-only heating, making it a credible option for small-batch baking or side dishes when the main oven is occupied. Day-to-day usability is strong. The LCD touchscreen display and backlit knobs make mode selection straightforward, and the Far View Screen is a thoughtful touch for real kitchens—key information becomes easier to read from across the room. The PrintShield stainless finish is also a real-world benefit: it reduces fingerprint buildup and simplifies wipe-downs, which matters on a high-visibility built-in appliance. Capacity is a well-judged 1.4 cu. ft., with enough room for common cookware like a 9" x 13" casserole dish—ideal for family sides and meal prep. Smart connectivity adds convenience for users who like app-based control; notably, Google Assistant support is positioned for broader availability, including Canada, while Alexa functionality is described as U.S.-only. Limitations are typical for this category. At 1.4 cu. ft., it may not suit buyers who routinely heat oversized platters. Also, users who prefer dedicated one-touch buttons may need an adjustment period with the knob-and-screen interface, and some may find alert tones more subtle than expected. Overall, the KitchenAid KMBS730SPS is an excellent fit for design-conscious kitchens that want built-in integration plus air fry and convection versatility. Those who prioritize maximum cavity size or ultra-simple, button-driven controls may want to consider a more basic, larger-capacity microwave format.