This is the first mandoline slicer I've ever had, and I really love how useful it's been. The blade is very sharp and the "grip" is extremely good at getting as much of the food as possible sliced. It's made several of my meals much easier to cook, and more fun. 
The design is a bit odd, at first all of the pieces fitting into the mandoline sounded great, but with the blades not being dishwasher safe I still need to completely remove them each time I use it. It's easier to just have them seperate for storage, I never store them inside the mandoline anymore. So I wish there was a casing for them instead. As well I wish that OXO sold the blades separately, as these will eventually dull and it's so wasteful to have to get an entirely new unit.