Comfort in 1950-s-1950-s

It is said that the propeller liners were hugely more comfortable and luxurious than the modern jetliners.

Why was it so?

For example, take the Boeing 377 Stratocruiser. It could accommodate 100 people in tight coach seating. And it was used, e. g. to travel to Hawaii, in about 8 hours.

On those trips, the airlines deliberately fitted it out to carry only 60 people, in better comfort.

Now, from the end of 1950-s, Boeing 707 and Douglas DC-8 could fly to Europe, also in 8 hours or so. And Boeing 707 was suitable for less than 190 people maximum in coach.

How was the comfort on the early – 1950-s, early 1960-s – jetliners? What comforts were offered to say, 60 best paying passengers, and how did that compare to comfort aboard Stratocruisers?