I have a Swytch Gen 3 and Max battery that I am very happy with. I was glad that I took time to investigate thoroughly first, reading through a lot of the facebook feedback before I purchased my kit. As a result, I paid the extra £40 and chose the OLED display because it enables me to go up and down in power level settings (e.g. 0, 1, 0, 1, 2,1,0), whereas, the standard controller requires you to go right up to level 5 before you can switch down to 0, 1, 2, etc.; consequently, I minimise my power usage to the extent that i often ride almost 30 miles and am still on level 3 or 2 battery when I finish/ The only change I would make is to the display, where I would increase the size of the power level characters and introduce a positive click on the power up and down buttons as it is not easy to see which power level you have selected, particularly in sunlight.