I just assembled this and it looks good BUT some pretty major flaws to be aware of.  
#1)  The feet for the poles do not go up into the pole far enough to pass through the bolt and wingnut to keep them in place!! I tried everything. The holes were not drilled correctly and are off by about 1/8".  VERY frustrating I have to now go buy bolts and wingnuts at the hardware store to complete this.  
#2) The loops on the ends of the tensioner cables will come undone from their clamps if you tighten them too much, even with your hands.  I had 2 of them break on me and had to buy more clamps at the store.  Aggravating as it would seem like a "tensioning" cable should be much stronger.