It was extremely difficult to get it to unroll. I was afraid I was going to crack it. Had it sit in the sun and then put heavy things on it as I got each section unrolled.
This is the one to get if you have a high-pile thick carpet. Standing up great - you could rollerblade on it. Unfortunately the first mat delivered had a 3-inch tear in it at the corner. Not sure whether this is from delivery or from the original product as I was not present when it was delivered. It is quite heavy but holding up well to everyday use.