At first I was skeptical on how to use this thing but the NB flip is easy and convenient all you have to do is follow the directions it blends everything within 45 seconds it's easy to assemble and clean  it does weigh a little bit but that is because it has a rechargeable battery so that you can take it on the go with you I have used it 3 times so far no issues and it's easy to put away I made a smoothie with strawberry's and bananas it was great.