The design is quite clever. Freshly blended drinks, kept cold by the metal design, on the go. It is chunky but will fit most bags. Cleans super easy and can be charged anywhere. One charge last almost a dozen drinks. The only gripe I have is that the design of the blender cap does not like powder products placed in at the top. My protein powder didn't blend well due to some of it entering the space/gap in the mouth piece where the blender doesn't reach. Other than that, quality and thoughtful build.