Worked for me!
Since there are so many bad experiences here I want to leave a good review to let people know that the site is definitely not a scam. It is, as other said, a buying service based in China. That is, they buy things from Taobao (the Chinese ebay), get it shipped to them, the re-ship it to you at a premium. I ordered a rare part I was unable to find anywhere else. The shipping costs are very unique to this site, as it ask you to estimate how much your item weigh and pay accordingly. I saw that was the source of a lot of these bad reviews, they chose the cheapest shipping option when they buy a bigger item. My part was small, so I chose the cheapest option ($3.99USD) and it worked for me. There's also a small convenience charge (7%?) on top of everything for paying by credit card. Overall it took about less than month for me to get the item, which is reasonable considering they have to have it shipped to them first then re-ship it to me. They give you a tracking number in the site's account section, it actually does work and even tracks through USPS once it got to the U.S. The part was exactly as described. So overall, I'm pretty happy with the site and was honestly pretty worried after reading reviews here. I highly recommend them. Be sure to pick the right shipping weight though to get the correct shipping charges!