Got one but never use it as the asphalt driveway in front of the garage is too rough. Use a $6 Harbor Freight moving blanket. Fold up an end as a pillow if I'll be in the same spot for awhile. When it gets too oily or greasy after about a year, I toss it and replace it. Have a couple of old Boogie boards I use for kneeling mats when pulling/installing wheels with the impact, doing brake jobs, etc.