One of my best dictionary friends, it is the only English-Russian translator I use. I recommend it to all my students, especially to those who like to use the first word the dictionary gives out without considering the context. It is also great for non-translators like me when reading or writing complex texts in a formal style.
Great when you need to go beyond formal English. I use it all the time in class if I want to say something more down-to-earth and realistic, as well as when watching movies/series. It almost always works for me :)