This portable blender has been so useful to me. I'm always on the run, and it has been so convenient to just throw in some veggies, fruit, ice, and water or milk to make the perfect nutritious smoothie. The blender is so easy to use; just make sure it's fully charged and the lid is tightly on before you operate it. You may have to flip to blend more than once depending on the amount of ice its used. I absolutely love this blender!