In December 2004, Rolling Stone ranked the song number 255 on its list of the 500 greatest songs of all time. It was ranked at number 259 when the list was updated in April 2010. Slant Magazine placed it at number 42 on their list of the greatest dance songs of all time and Pitchfork named it the 18th best song of the 1970s.
In 2015, "Heart of Glass" ranked at number 56 in the UK's official list of biggest selling singles of all-time with sales of 1.3 million copies.
Almost immediately after its release, "Heart of Glass" became the subject of controversy because of its disco sound. At the time, Blondie was one of the bands at the forefront of New York's growing new wave music scene and were accused of "selling out" for releasing a disco song. According to Harry, "Heart of Glass" made the band pariahs in the eyes of many of their fellow musicians in the New York music scene. The band was accused of pandering to the mainstream that many punk/new wave bands at the time were actively rebelling against. She also said, "People got nervous and angry about us bringing different influences into rock. Although we'd covered 'Lady Marmalade' and 'I Feel Love' at gigs, lots of people were mad at us for 'going disco' with 'Heart of Glass'... Clem Burke, our drummer, refused to play the song live at first. When it became a hit, he said: 'I guess I'll have to.'" Chris Stein was equally unrepentant about the song's disco sound, saying, "As far as I was concerned, disco was part of R&B, which I'd always liked."
Despite the controversy, the song was a huge hit and helped propel Blondie from cult group to mainstream icons. The band itself has acknowledged the success of the song in helping their careers and has downplayed criticism of the song, pointing out that they always experimented with different styles of music and that "Heart of Glass" was their take on disco. The band itself has jokingly taken to referring to the song as "The Disco Song" in interviews.
The video was directed by Stanley Dorfman. Contrary to popular belief, it was not filmed at the Studio 54 nightclub; Chris Stein said that "in the video, there's a shot of the legendary Studio 54, so everyone thought we shot the video there, but it was actually in a short-lived club called the Copa or something". The video begins with footage of New York City at night before joining Blondie on stage. Then, the video alternates between close-ups of Debbie Harry's face as she lip-syncs, and mid-distance shots of the entire band. Harry said, "For the video, I wanted to dance around but they told us to remain static, while the cameras moved around. God only knows why. Maybe we were too clumsy."
In the video Harry wears a silver asymmetrical dress designed by Stephen Sprouse.To create the dress, Sprouse photo-printed a picture of television scan lines onto a piece of fabric, and then, according to Harry, "put a layer of cotton fabric underneath and a layer of chiffon on top, and then the scan-lines would do this op-art thing."The popularity of the song helped Sprouse's work earn a lot of exposure from the media.Harry also said that the T-shirts used by the male members of the band in the video were made by herself.
"Draped in a sheer, silver Sprouse dress," Kris Needs summarized while writing for Mojo Classic, "Debbie sang through gritted teeth, while the boys cavorted with mirror balls". Studying Harry's attitude in the "effortlessly cool" video, musician and writer Pat Kane felt she "exuded a steely confidence about her sexual impact... The Marilyn do has artfully fallen over, and she's in the funkiest of dresses: one strap across her shoulder, swirling silks around about her. Her iconic face shows flickers of interest, amidst the boredom and ennui of the song's lyrics." Kane also noted that the band members fooling around with disco balls, "taking the mickey out of their own disco fixation."Reviewing the Greatest Hits: Sound & Vision DVD for Pitchfork, Jess Harvell wrote that while "owning your own copy of 'Heart of Glass' may not seem as cool [anymore]... there's the always luminous Deborah Harry, who would give boiling asparagus an erotic charge, all while looking too bored to live."
