We used this product for under child tables for childcare - works very well & will be durable for this application. I would agree with other posts that these would not work well (or long) with adults on chairs as they are too thin to withstand that kind of pressure. Then again they are half the price of 'good' ones so you do get what you pay for!
I have this on laminate wood floors and it works great! No sliding or moving. I placed something heavy on the corners as it was unrolled and after a day or so it lays perfectly flat on its own.