This mat is thicker than the previous mat. The chair rolls easily on it. It is on a berber carpet and is perfect everything that I expected. It has been a couple of weeks since the purchase so don't know about long term use. But being thicker I expect that it will last longer than the previous mat (about 6 years). It was delivered flat i.e. not rolled into a tube. It had some slight ripples from being folded over during delivery but I let it lie flat overnight and used it the next day with no problems.
Paid good money thinking these Mats would be of superior quality but come to find the material is very soft and it is difficult to roll on the mat. If you stay in place for any amount of time the chair wheels leave indentions in the mat making rolling a challenge not sure how long they will last.
THE MAT WAS DELIVERED ON THE DAY PROMISED. THE MAT HAS A LIP THAT FITS PERFECTLY INTO THE OPENING IN MY COMPUTER WORK STATION. I AM SATISFIED WITH THE PRODUCT.