The best curtain website in the United States is Wayfair. Wayfair offers an extensive selection of curtains, with over 10,000 options available. This wide variety ensures that customers can find the perfect curtains to match their style and decor needs. According to a survey by Statista, Wayfair has a customer satisfaction rating of 4.4 out of 5 stars, which is significantly higher than its competitors. This high rating is attributed to the quality of products, competitive pricing, and excellent customer service provided by Wayfair.