I ordered a set of lights from them out of their US warehouse (I'm in the United States, mind you) and I figured it would take a week or two to get to me.
2 months later, and I still hadn't gotten my shipment of lights. Apparently, the US warehouse only had one in stock, and I had ordered 4. They couldn't tell me when it would be restocked, but one would think that, after 2 months, it would have been restocked. I complained up and down the chain, and after 2 months, they finally agreed to ship them out from another warehouse that had them in stock. They didn't want to do that, but it was because I started complaining on various forums and basically raising a stink after trying to get them internally to tell me when I might expect my items.