Original sentence: 2-man crew (compared to 3-man crew of the 727).By the first few years of the 21st century, its mature design, low maintenance and operating costs appealed to the low-cost carriers.The A320 family has successfully fought off competitive challenges from the Boeing 737 Classics (-300/-400/-500), the Boeing 737NG (-600/-700/-800/-900), the Boeing 757, the Boeing 717, the McDonnell Douglas MD-80 series and the McDonnell Douglas MD-90 series during its almost two decades in-service.The A320 family was liked by passengers as it has a wider cabin and bigger overhead stowage bins compared to other airliners of the same class.The fly-by-wire technology also gave passengers smoother flights
Edited sentence: By the first few years of the 21st century, its mature design, low maintenance and operating costs appealed to some low-cost carriers.The A320 family was liked by passengers as it has bigger overhead stowage bins compared to other airliners of the same class