We used to install kits for a long time our owner was well sold on the kit bikes and had a few of them, hasn't ridden any of them in years after trying a quality bike. We had enough problems with various kits that we stopped buying them. There are certainly a few people who have kit bikes and they have been lucky that they are working still and great for them. I would rather have a bike that is dedicated as an E-bike. I prefer something designed for the purpose. Sure I can tape a blunt object to a knife and use it as a hammer but I would rather just get a hammer.