I've used the Swytch kit on my vintage mixte frame racer and it's definitely made me fall in love with the bike all over again. I've been using it more for things I wouldn't necessarily have chosen the bike for before like big shopping trips because I'm not a strong cyclist. It just gives the extra boost I need and also helps keeping up when cycling with friends. Did have to wait absolutely ages for the kit to arrive which was a bit of a shame but other than that have recommended it to many friends. I also lost a screw from the control because my handlebars were a little too wide for it but fitting an extension bar and buying a new screw with the input from the customer service team as to the right bit to get solved that issue.