I received this product from Nutribullet and Influenster for free! And I am glad I did. This is a very useful and very versatile blender. Perfectly portable and easy to use. The blades are adequately covered and very safe. I never had trouble in any way while I was using it. To top it all off not only did it keep my smoothies I made cool, it was super easy to clean. The only downside I saw was it was a little on the heavy side but not too heavy to not bring along! Plus you can blend and drink without ever taking the top off!