This is not an expensive item and the quality of the finished product reflects that.

-  The joint where copper tubes meet are absolutely front and center when mounted, on the most obvious surfaces, see the attached photo. This is sloppy design.

- The welds are quite sloppy (should also be visible on the attached photo) and the color is darker than pictured.  

- In the largest frame, the parallelism between the inner and outer hexes is quite poor -- there's at least 2mm of parallelism loss over the surface. 

- The color is quite a bit darker than the stock photo.

I'm happy enough to keep it, but maybe put it in a more secondary location.