Our rug is actually thicker than that recommended in the product description. Our chair rolls OK not great but OK. We purchased at [$] less a $5 coupon. Others were $49 and up. But I don't think a smoother "roll" justifies the step up price.
This is an attractive product and certainly not the least expensive. The thickness and hardness are severely lacking as the chair wheels dig into the surface as well as create potholes that are difficult to get out of. I am constantly realigning it as it slips all over the carpet. Not recommended at all over carpet.