Hi Ruth, I really like that thing! I bought it at Williams-Sonoma...
It was a little pricey (about $30?), but I like it. I like that the julienne pieces are not super thin.
However, you do end up with a long, skinny piece that's kinda unusable, so I only use it if I need a lot.
A mandoline would probably be easier to use, but I hate dragging that big thing out, and having to wash so many pieces, so that julienne peeler works great for me.