I bought these for inside of my front door and inside of my porch door, and they are great! The style is a lot less outdoor looking and really coordinates with the other geometric-patterned rugs I have. They clean up easily (cat hair can be vacuumed right off), they stay in place, and they're a good texture for removing shoe grime.  They grey color seems like it will do a great job at hiding dirt. I would recommend these to anyone who wants to avoid tracking dirt and wet shoes inside of their house.