rosle really is the best peeler, i don't use anything else for peeling stuff besides a western paring knife. but be careful, it is basically surgical and will take chunks off your hand if not paying attention while mass peeling potatoes/carrots/etc... i've had the unfortunate experience of taking off a chunk of my palm whilst in use. first discovered it while bargain shopping at a homegoods.
i imagine you can buy replacement blades for it? wonder if there are any sources for it.
Replacement blades are available here
http://www.abt.com/product/47648/Rosle-95979.html