Never used one, but can't really imagine why you would want to.
USB is a crap interface for networking and you are pushing all the processing of the network packets onto the host computer rather than being dealt with on the network card.
Ethernet Network cards operate on a principle of Carrier Sense Multiple Access / Collision Detect (CDMA/CD), this means that all the network cards are listening to the wire and processing every packet that goes up and down it , even those not intended for it, only those packets that are destined for that computer are passed up to the main CPU for processing.
This is presumably why this "bridge" talks about a maximum of 17 connections.
Most modern motherboards come with a 10/100 NIC built on board, or you can pick one up for less than a fiver, so really can't see the benefit of this bit of kit.
Cheers
Merv