I recently purchased a Curt round tube Class III receiver from Trends-Auto off of Ebaymotors and am very pleased. I ordered it online on Friday the 4th of Feb and received it on Tues the 8th. The receiver was $126.98 and shipping was free so it was a no-brainer for me. It took me about 35 minutes to install taking my time and the quality of the product was superb imo. The instructions were short and sweet for the install on my '02 XLT but I would add that dropping your spare during install makes it easier to get your fingers in the small areas and since the most rearward bolts are to be removed, a good lubricant may be needed but I just used a breaker bar and some monkey pounds.
Overall, I am very satisfied and if I feel the need, I would definitely order from them again!