Pickups/Transducers

There was a recent thread regarding pickups by Hippie Guy. Anyway, he put together some good info on Live 'Ukulele site in an article titled "Pickups". He describes the different components and types as well as links to some of the more popular ones available. Makes for a good read and you can comment or provide feedback.

Anyone use one of these? http://schattendesign.com/uke.htm

Just wondering if they are any good.