I purchased the smallest size, approximately 2x3, as a bedside rug.  As I have several pets, I did not want to make a large investment, but still wanted a rug that looked nice.  I am satisfied with the color and subtle pattern of the rug and the low pile -- does not show dirt and easy to clean.  The major drawback is that the rug's fibers are not dense or plush, which is reflected in the price, but it serves my purposes well.  Using a good quality rug pad lessens the low density factor.

Pros: Color, pattern, price
Cons: Density of fibers