It's a decent size. The sturdiness of the shelving unit will depend on how well one puts it together. The black snaps, that serve to help adjust the height of each shelf/hold the shelves in place, don't completely fit perfectly. As in...there will be some space between the pair though it is still possible to have the the pair locked in one place. Perhaps this is intentional such that the gap can help one take the snap pairs apart easier for adjustments?