The power is good but the regular battery is only sufficient for short trips. I would probably need two or more of the bigger batteries for a day's cycling but I have not tested that. The weight of battery and motor on the front wheel create an instability for my less cycling-experienced wife. A quicker-to-operate on/off switch would facilitate conserving battery life on the flat and downhill. A lock on the battery catch would avoid the need to remove it when parked in town. The battery and mount occupy prime handlebar space making it awkward to mount a light, a front pannier and a bell - designing in a mount for a front light would be a boon. Swytch has been a low-cost introduction to the realities of an e-bike allowing us to understand the benefits - speed and power versus the challenges - eg extra weight, centre-of-gravity, range limits. Swytch facilitates 'sweatless' about-town trips, which is ideal when I can't afford to have to shower when I arrive, but the battery has insufficient capacity to help me overcome a long-distance knee problem I experience on long cycles. I appreciate that I could solve this with extra batteries, so this remark is merely to calibrate the Swytch performance in real use.