The only drawback: the specified dimensions of picture frames not agree, that is the bounding box. Photos are then covered approximately 1 cm from the frame. The visible range is 4 subjects in the size 4 cm x 6.5 cm and 8 compartments with 4 cm x 4 cm. But if you know, and considered in advance is not a problem.
Unfortunately, the clock had with the first delivery at the back traces of mold on (probably wrong / poor packaging / storage). The complaint went but quickly and smoothly.