and tend to provide a much more convoluted interface as well as a worse link.
Yeah the interface is a little "WTF??" at first - I also found that a bug in the interface meant I wasn't able to set up MAC filtering using Firefox - had to use IE7 to do it. I can't really fault the connection quality though. If you're going to be doing a lot of PC to PC file transfers, get an USB stick.
...unless any of your PCs only has USB1.1, because then it will be really slow as well.