Took longer than expected to receive the kit. When it finally arrived it was winter and I wasn't motivated to set the bike up till the weather improved. Waited till spring to get started. Struggled to set up the ring that goes around the peddle crank correctly and online support was slow. Didn't feel like the kit was working for the first few cycles but reattached the peddle ring in a different way and the difference was instantaneous. Like using it now but battery life poor as I waited to set the kit up and only realised at that latter time that the battery should have been charging on and off since received. Better communication would have helped all the issues I experienced.