I bought several of these doormats about a year and a half ago and I love them.  We use them inside the doorways, but I think they would stand up to outdoor use also, if they were hung up to dry from time to time.  For indoor use, they are just right.  They have a non-slip rubbery backing, and the top just looks like good quality sculpted indoor-outdoor carpeting.  Because of the texture of the top, you need to shake them out and/or vacuum to get them thoroughly clean; a broom does not cut it.  They come in a variety of attractive colors and patterns.  I would not hesitate to recommend these to friends, and would absolutely buy them again in the future.   

Pros: durable, attractive, non-slip