Simple and easy to use, with all the gadgets for filling, liquifying, and drinking a smoothie. It is also very easy to clean. The only improvement I have is to make the blades sharper, to get the seeds.
I like that I can get all of the fruit/vegetable in juice form as opposed to just the juice, which regular juicers provide. The con is that after blending a mix once it is challenging to open the container add something to it and then blend it again. It gets pretty messy.