Yes. The key in many ways is the piece of wood used to suppport your forearm at the correct height. As I said before, you want your hands to droop onto the keybaord and trackball. Also, note that the trackball is positioned to be able to hit the "Enter" key on the numeric keypad with minimal motion.

The arm support is sanded down with 800 grit sandpaper and then treated with Tung oil. The edges are generously rounded. This makes it very smooth and comfortable.

I should also note that the underlying structure is welded steel. I tried drop-down trays on conventional desks. They are flimsy and have enough give to make them uncomfortable. The cavity on my desk is strong enough to stand on so it feels very solid during normal use.