Functionally my Swytch is as expected, and a game changer that has got me back on my cycle after some health problems. I haven't yet evaluated the range capability fully, or the difference made by altering the power settings. My concerns are that the Go battery is vulnerable if left on the bike and heavy to carry if taken off. A secure attachment would be a big improvement. I have not found a tidy way to finish the wiring and dislike the redundant terminals, and everybody's problem with Swytch is the ridiculously long waiting time after making payment in full, extended for mine by at least a month. Communication about delivery was intermittent and vague. Did dispatch mean from somewhere in China or somewhere in the UK.