Conversation so far:
When was Led Zeppelin IV released?
8 November 1971
How successful was  Led Zeppelin IV?
In the US Led Zeppelin IV was Led Zeppelin's best-selling album
How did Zeppelin IV do after it's first week?
Led Zeppelin IV entered the UK chart at No. 10, rising to No.1 the following week and has spent a total of 90 weeks on the chart

Question: How were the reviews?
Self-contained rewrite: How were the reviews for Zeppelin IV?