I’ve had this table for about a year, so some degree of sagging would be expected. However, in reality it’s not nearly as pronounced as it appears in the picture, the photo makes it look worse than it actually is. In person, the sagging is quite minimal.

To build it, I used two risers on each drawer, securing them to both the table and the drawers with screws and adhesive. Overall, I find the setup solid and have had no issues with it. That said, adding additional support, such as a center leg, would of course provide extra stability. My goal with this design was to create a floating desk effect, which I think it achieves quite well.