Those are extremely nice! I've had similar bins for quite some time now and they've proven to be extremely useful. I added some drawer pulls I pulled off of some old cabinets to make them a little easier to pull off of the shelf.
And added French cleats to the backs so they'd hang instead of take up surface space.
Made a couple different sizes for storing a variety of stuff as scrap came available. I have plans to remake mine someday out of ply like yours but since they're working so well it's been difficult to spend the time.