The Orangelink is ok. We advise getting the Pyro or SIIG if at all possible- those companies have the best quality control from what we've seen, and the price dif isn't much.
I can't vouch for the quality control standards, but D-Link has been very good in my experience. I usually base my initial decision of an unfamilar company on their web site and D-Link has a very VERY informative and well designed web site. Since my initial experience with D-Link I've used, installed, or successfully recommended use of at least 6 different products from them and all have performed flawlessly.
So, if you aren't using the software from the other companies, D-Link might be an option for you. What do you guys think SoFo? Heard anything bad about D-Link?