This is an okay product -- it would rank middle of the pack overall but for the price and the size, it was great.  I did have an issue with the corners meeting up at 90 degree angles on one side but a few whacks of a mallet helped even stuff up.  Again, I knew what Iw as buying and am satisfied with the product -- highlights my plants at the proper height without requiring planter boxes to be tied to the balcony rails.