I'm quite new to the E-Bike world but deceived to delve in when I saw the Swytch Kit at 50%. I have to say I am so happy that I did because this kit is amazing. I leave the car at home and ride my bike (5 mines e/w) because it's just so much fun, and with the power turned up, so effortless. I had read some reviews stating the power delivery could be jerky at times. I have experienced nothing like this. the power is there exactly when you want it and will drive you up to speed that at one point scared me enough to back off. The unit itself is rugged and feels well made. Cannot recommend this enough to anyone out there thinking about getting one. Just go ahead, I promise you will be pleasantly surprised.