Love the cabinet!! Your hubby did a great job!! Nice craftsmanship.
One question... how tall is it? Can you see the thread in the back of the top drawer? If you can't, I wonder if it would be better to put one shelf on the top, thread drawers in the middle, and a shelf on the bottom (for heavier items for stability and, to keep the thread above the floor)? I make this suggestion ONLY because you're talking about making these for other sewers and want to appeal to a large group.