Many holes were not aligned properly, and some were filled with dried mud (please note the packages were brought inside as soon as they were delivered).
Instructions were unclear, and made reference to a middle slat for the bed, which was not included in the packages. There is a clear space in the middle of the frame for this middle slat to be placed, but we did not receive any middle slat. 
In addition, even with the aid of the adjusters included, the center rail was too low to properly meet the slats. 
We assembled the bed to the best of our ability. In the picture you can see where the middle slat should have gone.