I have just completed 3 years with the switch kit and I think I can give a long-term honest usage review. To start with, if it weren't for Swytch I would have given up on cycling in Bristol due to some steep hills in the city. This kit arrived the same day I moved to Bristol and it has been the key to keeping me cycling through the past few years with some physical challenges. I have the last-generation kit and it still gives me around 25-28 miles on a moderate hill cycling. Secondly, I like the volume and small holding grip which helps in taking out the battery and just charging either at work or home and not really feel awkward carrying big lumps of tower batteries that were available during early 2020 in this budget. Lastly, the customer service is absolutely brilliant. I had a minor issue with the controller and contacted customer service. They replaced the entire battery pack within a week of my logging issue. I am very impressed and possibly will go for the new generation one as soon as I have saved some extra for this. To anyone contemplating converting your bike with swytch kit, go for it - You won't get any better than this.