The system is easy to operate and only takes a few minutes before being able to drink filtered water. There are several of light indicators that informs the consumer of any issues or if the filter needs to be changed. I have provide a quick step-by-step guide on how to use the unit in my video. Overall, this is a great reverse osmosis water filter unit that is easy to clean, change filter, and maintenance. My wife and I are very pleased with our purchase.