I use my bike so much more now that I have a swytch kit. I can pop to the shops with the battery off and then put it on to get my shopping back home up the hill. I can put a toddler on the back and still keep up (ish) with my teenagers on a bike ride. They were quick to replace my handlebar switch when it failed. Downsides: The range isn't as far as I hoped it would be. I bought the bigger battery but even on the flat and minimum power it's about half what I thought I could get. Also the new handlebar switch with one button is a bit of a pain. I can only go up a power, or have to click five times (right round the numbers) to go down one notch.