Pros:
Great wi-fi dongle! It's compatible with Windows XP and Vista.
The range is just as good as a built-in wifi board of a notebook computer.
Does the job nicely.
The build quality is ok. It's a bit cheap-looking but it looks resistant.
Cons:
It need drivers to run. It would be a lot better if it was plug and play.
There's no place to attach the cap when it's connected. You can easily loose the cap if you are not careful.
Other than that, no real complaints
Bottomline:
Good and cheap! If you need a wi-fi dongle, I recommend this one.