The wax is a tinted mahogany wax from mylands. It has a strong smell going on. The overall effect is remarkable. It adds sort of an orange tint to the oil stain that's reddish, and wood that's brownish. It ends up being fairly dark, but you can still see the grain, and it evens out the color differences between the walnut sap-wood and heart-wood.
Here are some pictures of three identical benches: Bare, Oiled, and Oiled and Waxed
With the wax, the wood almost seems to glow from the inside, which is a neat effect. Here is a picture of a completed long bench and short bench in place