Electrosex Devices

Has anyone tried any of the electrosex devices? One site with information about a number of them is http://www.extremerestraints.com/stat/elec. They seem very interesting, but expensive. I am not interested in them for PE, but for purely sexual stimulation purposes. However, it would also be interesting if they could be used for PE purposes.

If anyone has experience with them, I would appreciate your sharing that experience.