Sometimes a coffee table that isn’t the standard height or width is exactly what a room needs. In this instance a very low coffee table creates a crisp horizontal plane in the foreground offsetting the long horizontal line of the credenza in the background. A higher table would have blocked the view of the credenza and competed with it; the varying heights add interest.
If your coffee table has a lower shelf you don’t have to fill both levels but if you choose to try lining up the items on each tier. Use two pairs instead of threes and don’t forget to play with heights. A lidded storage box or small basket can help keep the bottom level looking sharp while giving you a place to stash items like remote controls.