Is the AXE-3DR-SC one unit with three drawers, or three separate drawers?

One unit. Three drawers stack in a single 17-inch component that drops into one opening in the island.

What does the SC at the end of the model number mean?

Soft-close. The drawers are damped rather than free-slamming.

Which stainless does Alfresco use here?

304 stainless steel, the same grade running through the rest of its outdoor kitchen components.

Three drawers or two — how do I decide?

Three drawers divide one opening into more separate compartments, which suits small tools, foil and spices that would otherwise get mixed together. A two-drawer unit gives you fewer, larger spaces. Both configurations are in the grill drawers range.

Will it sit level with the doors on the rest of my island?

If the rest is Alfresco, yes. The doors, drawers and combination units are built as one matching selection intended to be mixed along the same front.