I expected more from this product. It is basically a row of very sharp blades attached to a handle. I expected it would roll and have more control over the cutting. This is basically several very sharp blades that cut. You need to pick up the blade and cut several times to cut anything anywhere near equally.
As per others, I can't work out how to open it to fully clean it and am nervous of catching myself on the very sharp blades.
Overall, I cannot see what this is bringing and its easier and actually quicker with a decent sharp knife.