This is exactly the model Kassensturz had under the microscope a few weeks ago. Someone had problems because of the warranty, and he probably drove it often in heavy rain. The battery must have failed at some point because of the wetness. I also use it when it rains, but I make sure it's not heavy rain. In any case, it's a top scooter with real steam. I also weigh over 90 kg and it runs just as fast uphill as it does straight ahead. I can recommend the VMAX R25. Weak points are mentioned, such as indicators etc.