It's a great, slatted wood mattress frame that was easy to set up. 

I was looking specifically for a modular frame that could be easily built/deconstructed, while meeting Tempurpedic' mattress frame recommendations. It fits my queen-sized TEMPUR-Cloud hybrid mattress (Tempurpedic's mattress-in-a-box as of 2022) perfectly, and no issues after a week. 

Tempurpedic recommends 3" slats and 4" maximum distance between slats, and this frame fit the requirements. Measuring a few of the slats, and the frame's measurements are accurately stated in the listing.

One aspect to consider is it is fairly easy to push around the frame and queen-sized Tempurpedic mattress on the vinyl floor of my new apartment! Overall, very satisfied with the purchase.