I've been mostly using Bing for the last year, for work. The quality of results is still not as good as Google's. The interface is a bit clunky when searching for videos. They have a search results area for recipes that doesn't work. In an effort to make results easier to use, they are actually harder. Overall it's ok, but Google is still a better experience. It's surprising, given all the years it has been around. It kind of feels that they just stopped competing and decided that second place was good enough.
