Does the oven need a special electrical circuit?

Yes. It is a 240V electric wall unit, so it needs a dedicated circuit and hardwired or properly rated connection. Plan for a licensed electrician if the kitchen does not already have one.

What is fan convection good for?

The convection fan circulates hot air around the cavity, which gives more even results when you bake on several racks at once. It also speeds up some roasting and baking tasks compared with plain radiant heat.

How does the microwave's Sensor Cook work?

Sensor Cook detects moisture or humidity from the food and adjusts cooking time and power automatically. Auto Cook presets do the same for common items, so you pick a program instead of setting minutes.

Can this replace a separate wall oven and microwave?

Yes, that is its purpose: one 27-inch built-in unit provides both. The trade-off is that the two appliances share a chassis, so a repair can affect the whole unit.

What size cabinet opening does it need?

It is built for a 27-inch combination wall oven opening. Confirm the cutout dimensions and depth against your cabinet before ordering, since trim and clearance vary by installation.

Is it worth choosing over separate appliances?

Choose it if cabinet space and a clean built-in look matter more than flexibility. Separate units let you replace or upgrade the oven and microwave independently.