I've had this model of pealer for over twenty years I use it exclusively on a Daily basis. OXO sent me a new one to try and it works so much better than my other old one. Seems the thing got a little dull in that time. 
I would have purchased the new one if I had realized it had gotten dull, but honesty I have to look close to be able to tell the difference without using them.
Very happy with bouth items