I've had this item in my house for a week. It still has bumps that have not flattened. I also have it on carpet. The little teeth on the bottom do not stay in the carpet. My chair is on wheels and I've had to move the mat every 2 days to put it back in place. Because it moves the chair wheels get stuck if I move forward too much I can't get the chair to roll back.
It works for what it was made. I am placed it on my carpet to make my home office chair roll with ease. Before I had the mat rolling the chair to sit at the desk was hard now I can push away from the desk to stand up or sit and roll the chair back closer to the desk to work. Adjustment were necessary since I am working at lot more from home than before.
This mat worked well on my carpet. It stays in place and I can move around in my office chair without fear of the mat shifting. Very well satisfied and I would recommend this item.
I’m disappointed with this mat. In only a week deep grooves have formed where my chair wheels rest. So now I cannot roll the chair around my desk smoothly I have to actually pick up a chair leg to roll it out of its rut. Think I need to return this.