From retrospective reviews, David Stubbs of "The Wire" discussed both "Incunabula" and "Amber" stating the two were "terrific adventures in homebrewed Techno but not radically dissimilar in method from the work of their Warp contemporaries." Raggett (AllMusic) stated that "despite the relative sameness in the basic arrangements of tracks covering the better portion of the album -- a few song subtractions wouldn't have hurt the 75-minute length any -- "Incunabula" still stands out as a better effort than many other U.K. techno albums of the early '90s." "The New Rolling Stone Album Guide" gave the both "Incunabula" and "Amber" two and half stars out of five, describing them as "smart if unexciting ambient watercolors" that "give no indication of the innovations to follow". "Pitchfork" gave a positive review of the album, while echoing Raggett's comment on an excessive 75 minute running time with tracks like "Windwind" "exhausting it's 11-minute runtime" while praising tracks such as "Bike" and "Basscadet", described as a "fan favourite."