We need new carpet throughout living room, stairs and bedrooms and went to a local independent carpet shop at the weekend. The guy there said polypropylene carpets have been revolutionised in the last 5 years. Apparently they are now brilliant for families; can be bleach cleaned, no static, feel really soft, don't get eaten by moths, reasonable price, nearly everyone goes for them these days etc. Does anyone have any experience? Any negatives? Thanks!