The price and general plug and play design of the switch kit made it appealing. It also seems like the MAX was a good choice as far as battery range for my typical commute, which is around 18.5 km one way. The kit is light and when installed with battery pack adds a little more than 2 kilos to my bike's base weight, which is one real problem I have with many dedicated E-bikes. I had a fair amount of trouble with the hub on my particular bike as the fork wouldn't clear and I had to replace the fork, as well as grind the axle on the kit down to fit in the new drop outs. So the kit is not universal, nor is there an engineered solution to every problem, just some DYI instruction. The troubleshooting service was fairly responsive, and Swytch offered to compensate me for the purchase of the new fork. I'm happy with the general function of the kit now that it's working. There's a pedal rotations lag between starting to pedal and the kit's providing boost, but it's fairly fluid and intuitive. I've purchased (but not yet installed) the optional brake sensors, so there's the same second or so lag after stopping pedaling before the boost cuts out. That's somewhat more disconcerting, but understandable in a kit with the sensors it has/doesn't have. A couple of sore points. Range is significantly lower than advertised. I rarely use more than a level 3 boost, and typically stick to 2 (out of 5), but never make it all the way to work on a charge. That is, the battery rated at 30KM doesn't make it to 20KM without crapping out. I'm stuck with bringing my charger to work and back with me to refresh during the day. I also notice that even a few days idleness means the battery pack loses significant charge, which makes me nervous about the longevity of the batteries inside. Second, both the computer and the battery itself have level indicators, which rarely match. The computer will show no battery left (and assist does indeed disappear) while the battery lights are still showing 2 or 3 dots (out of 5). Can't tell if this might be a problem with the computer "protecting" the battery pack from overdrawing. I purchased the throttle, which I regret, as I never use it.