I've had my Swytch kit for about 3 weeks now. I was very impressed with the packaging and the video help instructions on installation. It took me a leisurely 3 hours to install but then I'm not a full time bike mechanic. Functionally it is great. I have the smallest battery and I live somewhere hilly but I can complete 12-15 mile rides with some battery charge left. I've replaced a lot of car journeys with the bike as it enables you to go uphill at a safe speed in areas where cars cannot pass. A couple of minor gripes - the delivery notification process didn't work so the tracking number was non-functional and the kit was delivered before I got could get any delivery time details. The small spare cables on the harness (for throttle and brake sensors should but don't come with little caps to protect them. None of this should put you off buying this excellent product however.