“The first masterpiece of what was only termed trip-hop much later, Blue Lines filtered American hip-hop through the lens of British club culture, a stylish, nocturnal sense of scene that encompassed music from rare groove to dub to dance. The album balances dark, diva-led club jams along the lines of Soul II Soul with some of the best British rap heard up to that point, occasionally on the same track.” - John Bush, AllMusic
“The jazz element is a key ingredient of Blue Lines. It runs through the terrific “Unfinished Symphony” and nudges against the hip-hop-leaning “Daydreaming,” which inspired nightly playlists at every martini bar on the planet during the ’90s. And it’s a main component of the trip-hop genre Massive Attack created. The music weaves in and out of consciousness, falling somewhere between a restless dream and a late-night buzz, as Nelson and Tricky barely break a sweat with their vocals.” - Michael Gallucci, AV Club