What are advantages of Wall Coverings over paint/distemper?

Wall Covering is a very easy and a pain free job. Applying paint is a very time-consuming process whereas applying Wall Coverings is a few hour process. Paint requires 2-3 coats before you get your finished wall, where as Wall Coverings is just one single coat. Paint absorbs the cooling created by the air conditioner whereas, the room with Wall Coverings will have controlled temperature since Wall Coverings absorbs less temperature compared to paint.