Some mandolin slicers are VERY DANGEROUS to use (almost lost a part of my thumb on one 5. years ago); however, this one is sooooo safe - that's the reason I chose it: safety with a mandolin slicer is PARAMOUNT! The reason I give it 4 stars in the cleaning area is because one must be mindful of the blades when cleaning. It is very easy to use, but if the vegetables are too big for the feeder port they must be halved with a knife before the mandolin can handle them. This unit is so safe that I would consider allowing our 14 year old to use it without my being there with him. this unit, to me, is well worth the money!