I'm very happy I was able to find this product cheaper via Amazon, and while I'm extremely happy with the buying/shipping experience, the product itself is lacking in quality.
I have experience working in a company that uses steel and aluminum for manufacturing, so my opinion may be biased. The welds on this rack are absolutely terrible. The front portion of the rack (where the fairing goes) has two tubes bent at a 45 degree angle; I'm assuming to add structural support as well as support for the fairing. However, one of the tubes protrudes further than the other which causes the fairing to bow outward on one side. Minor, I know, but it's a defect. Again, the welds are terrible. I can't stress that enough. I'm definitely going to sand down all the welds and redo them, or I might purchase some high-grade epoxy to add structural support.
Another detail - I purchased the rack extension (product 18117 I think...) and that fit very nicely. Unfortunately, the gap between the extension and either half of the original rack makes it impossible to place the mounting brackets in those positions.
IMPORTANT - with regards to the mounting hardware to attach it to your cross bars. Before you even attempt to mount it, go purchase some nylon locking nuts (I think I purchased 6 x 100mm...) and washers to replace the worthless hand-screw-thingys they give you. You'll also need to purchase a deep socket (roughly $3). TRUST ME, THIS WILL SAVE YOUR HANDS. All in all, I bought $8 worth of nuts, washers, and a deep socket, and I attached this contraption in roughly 15 minutes.
Other than the welds and sub-par mounting gear, it's a nice rack (couldn't help myself). But, I can only give it 3 stars...