Does the SS-4N1 have a built-in grinder?

No. It takes pre-ground coffee for the drip side and K-Cups or ground coffee for the single-serve side. You need a separate grinder for whole beans.

Can it brew a full pot and a single cup at the same time?

The two sides are separate brewing systems, but they share the water reservoir and power draw. Brew one side at a time for best results.

What comes in the box?

The brewer, a 12-cup glass carafe, a K-Cup pod holder, a reusable ground-coffee filter for the single-serve side, and a milk frother. Pods and coffee are not included.

Is the frother for milk only?

It is designed for milk and milk alternatives to make froth for lattes and cappuccinos. It is not a steam wand and does not heat to espresso-machine temperatures.

How does it compare with a Keurig Duo?

Both combine a pot and single-serve brewing. The Cuisinart adds a milk frother and a hot water function; the Keurig Duo is simpler and usually smaller on the counter.

Does it need special filters or pods?

It uses standard K-Cups and standard basket-style paper filters for the drip side. The single-serve side also accepts ground coffee with its reusable filter.