I own the original Brompton Swytch kit and now the Brompton Swytch Pro Kit. Their designers and engineers took feedback from the original kit to make refinements that made the new kit easier to install and more robust. For example the PAS disc clamps onto the pedal crank and the rest of the ring floats. The torque washer is thicker. The Brompton block allows you to place the battery where the brompton carrier block sits. The ride experience is customisable. I tuned it to give me a natural feel, the right amount of boost needed to keep up with London traffic or to overcome 45 degree hills in Hampstead Heath. My partner, who used to shy away from cycling, because of the mentioned barriers, now feels confident and asks me to go cycling with her. Their customer support has improved tremendously. You can book video calls to get help with installation and if there’s anything wrong they will send you new parts with express mail. I saw on their job board that they are hiring bike designers and customer support, 6 new hires total. This company is growing. I definitely prefer riding my Swytch Brompton as my main mode of transportation. It's fun and it cost a lot less than the official e-Brompton.