It took a while to get my kit. The instructions were very straight forward even though I am not very mechanical minded. I misplaced a couple of parts only to find them later. In the mean time the support team was very helpful and was ready to ship out the missing parts. I was glad to find the parts and had time to tell them to cancel the shipment. Very happy with the performance. I have knee problems so the battery assist was very helpful on my old city bike. I only ride 10-20 km each time so the battery is more than sufficient (used up maybe 1 bar). I would be prepared to buy another kit for my road bike.