We actually got this to go under the desk chair my husband sits in to paint (he's an artist with Parkinson's). The extra large size accomodates his need to move both sideways and forward/back. Strong sturdy. Also the edges curve down into the carpet so they aren't a trip hazard.
Size of the mat is good a little bigger than the previous one. Appears to be solid enough but I do see "indentations" where the chair wheels are - hopefuly that won't be a problem over time.
This mat was a little more expensive than my previous one but it's much more firm and larger so I don't find my chair getting stuck halfway off/on the mat. It is very sturdy and makes it feel like I am on a hard floor. I'd recommend spending a few extra bucks for this mat. I can tell it will hold up for years.
Chair mat was delivered to my home- nice & easy. Unrolled slowly over couple hours. Has nice smooth edges if chair needs to roll off edges. But I gave it 3 stars because once down and in use it travels side ways. So I have to remove the chair pick up the mat and re-place it on the carpet where it once was. Maybe my previous mat had different "grippers" underneath. This one is not that good on the carpet height that it was recommended for.
I replaced a very sturdy and thick mat that I had for a long time which held up well. I know from experience that the cheap thin mats are junk and crack quickly. After much research I selected this one which is about as thick as you get without breaking the bank. It was shipped in a big box somewhat rolled up. For my needs it looks to be the right mat time will tell if it holds up over the long term. No smell and it unrolled flat without too much effort. For the price you should be happy with this one it is a little larger than the other to make sure it fits you can't trim this easily.