I like the simple design of the device, it's easy to use and has good capacity for storing energy. I also like the fact that it can be charged using any home AC outlet. It's not cheap, but if you have enough space in your house or office, then it will do just fine. If you are looking for a low-cost battery charger for charging mobile phones or laptops, then this is perfect. You can charge your phone without having to carry around extra chargers. I am currently using this in my office where we need to run multiple computers at once. This allows me to keep all connected devices charged while ensuring that one does not overheat due to excess usage.