I purchased one for a dollar less a while back. I was disappointed in the fact I need to install software to run it and it was only accessible through the internet; catch 22. I troubleshoot PC’s and fix them, it’s what I do and this hadn’t really helped me. Used it for a while on my desktop and found that it would overheat quite often and just stop working. Even on my laptop it would overheat. Of course, I’m pulling constant speeds of 6Mb/s from the network but i would expect it to keep up with that.
Unless you need something to plug into your laptop on occasion and will not have it transmitting large files, I suggest it. Otherwise, stay clear.