The album received a mixed critical reception and became a symbol of alleged progressive rock excess with its detailed concept and lengthy songs. However it was a commercial success, becoming the first UK album to reach gold certification solely based on pre-orders. It topped the UK Album Chart for two weeks and reached No. 6 in the US, where it went gold in 1974 for selling 500,000 copies. Yes supported the album with a five-month tour of Europe and North America, the largest in the band's history at the time, that featured the entire album performed live.