I don't understand all the negativity. The guy put something together that actually works and he makes a little profit. Big deal. I mean we're only talking about $150 which includes shipping from Denmark FCS. To install on a $20,000 bike.
Don't sweat it as its just exchanging thoughts and opinions which is really the purpose of the forum. It wouldn't be any fun if everything presented was applauded and lauded with no counter views. Throw it out there and see what comes back and let the discussion happen. As you can see there is a healthy variety of viewpoints, bring it on, and maybe it may persuade or deter someone from the product but that is ultimately up to them after weighing the information.
Equitare solum equitare amplius