Mine arrived yesterday. I'm very impressed with it so far. I loved the one I had already, so I bought it to see how I liked it cutting smaller pieces. If I like it, I'll keep it. If I don't, my daughter needs a better one so she can have it. Because of that, I took the chance.
It's VERY sturdy. Mostly metal. My first cut was slightly rough. The rest have been smooth. So, I think it was "first use" thing or something. No biggie.
My box says:
No more than one or two sheets should be cut at a time.
It is not recommended to trim heavy chipboard, thick plastics, cloth, or metallic stock.
Hope that helps.