How good is the Pickaso Bow "Guitar bow"?

How good is the Pickaso Bow "Guitar bow"?
www.pickasobow...
Is it better than, say, the EBow?
ebow.com/
How easy is it to begin using and getting a good sound from?
In this video I show what's involved in using the Pickaso Bow (it's not a straightforward out-of-the-box playing experience) and demonstrate my struggle to get an easy beautiful sound. After a couple of days' practice I recorded a demo song at the end of the video.