Besides the color/density issues, the other problem with that link is the typical one you see with toppers:

**His sides/temples are as receded as the top of his head.**

You cannot correct that simply by slapping a topper on. You would either need large flaps going down the side or a full cap.

It also seems damn hard to get a perfect blend with toppers. Even if it looks great under one lighting or one picture, another moment can give it away. With a style like this, I think it would be much more convincing if he did a full cap like jrob.

The beauty of full caps from what I've seen is that for styles where the hairline is not exposed there is no blend point and no inconsistency under different lighting, wind, or other elements. It just looks like a head of hair, or as close as is possible without it being real growing hair.