I wish it were a little thicker. I have had one of these before and it doesn't seem to last very long before the middle section starts to crack and break apart rendering the whole thing useless.
Quality appears good for a new mat although it arrived with noticeable and significant large scrapes and surface scratches as it was not packaged or covered in shipping. Chair casters do leave indents but no more than similar mats used in the past. In its new condition this mat seems strong and flexible however it remains to be determined if it will resist drying and cracking after a few years.
This mat can't withstand the weight of an average person as the chair wheels dig into the mat. The mat also slides with the lightest touch. Since it will be used in a home setting I'll live with it.