Yes, it's quite common. It literally means "a long way ahead". "Switzerland is streets ahead of Italy in healthcare." "The iPhone 6 is streets ahead of the Samsung Galaxy 3." Be careful if you use it with individuals, it could come across as rude: "Tommy is streets ahead of Billy in French class." You will also often hear the exaggerated version: "iTalki is light years ahead of DuoLingo." (My apologies to Italy, Samsung, Billy and DuoLingo ;) )