Not perfect, but really really good for a new search engine, especially if you consider the cause! I was skeptical at first, but I've started using it on all of my devices, and so far, it is rare that I find anything lacking or inaccurate! I'll be honest, this is not the absolute best search engine in a technical capacity, but it does the job well and should you click an ad, it serves a good cause! (There are no more ads than any other engine!)