No doubt it needs cushions. For what it's worth, I wanted to try and stretch the limits of some of the commands, like fillet, chamfer, boolean and offset. Worked pretty well except for the fact the chamfer didn't seem to take on all the edges; I needed to go back an individually chamfer select ones it missed.

Another image with colors on the 'inside' of the boolean. Interestingly, just providing a different color (style) for the inside surfaces of the solid didn't translate to Keyshot as separate parts when using NURBS (.3dm) but worked fine when using .obj. But, .obj didn't render near as nice as nurbs. So, I had to separate the solid into surfaces to get it to work with NURBS in KeyShot.

Another render showing the 'inside' colors (click to make larger):