The kit works very well. It helps you enjoy your ride, and “enters” softly, you don’t even notice the electric help. It’s not a 5 star rating ( for me a 4.5) for 2 reasons: the autonomy is not as much as stated, and the waiting times have to be really improved. I have been trying to contact the web to get either another kit or an extra battery, but has been imposible. Just getting into a never-ending waiting list. To sum up: it really gets its work done, really worth its price, converting your bike into an E-bike; but if you want to buy, you should take advantage of the season offers they release, when they have stock…