This product feels sturdy and comfortable to use, and is very easy to clean. 
It's easy to use, but the result is very uneven. Some pieces only come into contact with the blades a couple of times, whereas other pieces end up almost as mush. 
For a rough chop use such as a salsa or chocolate for baking, it's great and offers some good texture. It's not great when prepping vegetables for meals. 
It works well as a self contained unit, but if you use the blades directly on the chopping board it results in a lot of mess thanks to the partial mushing. 
Overall, it's nice to have for a quick salsa, but I wouldn't buy one.