What's the difference between business class and premium economy?

Related questions

1. Has the Boeing 737 800 been grounded?
2. What is the difference between Economy Plus and Premium Economy?
3. What type of plane is a 737 800?
4. How many seats does a Southwest 737 800 have?
5. How much does it cost to upgrade to Economy Plus on United?
6. What is the difference between economy and economy plus seats on United Airlines?
7. Does United Airlines have premium economy to Australia?
8. Do you get free drinks in United Economy Plus?
9. Does United offer premium economy?
10. Has Delta grounded Boeing 737?

Tags

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2. #space
3. #headrests
4. #premium
5. #terms
6. #significantly
7. #offerings
8. #substantial
9. #amenities
10. #offering
11. #legrests
12. #recline
13. #economy
14. #these
15. #classes
16. #business
17. #greater
18. #expensive
19. #class
20. #generally
21. #superior
22. #legroom