I've always loved the 707 - it is probably the most graceful of the older four-holers. I remember flying on them waaaay back...AA 707s, Western 720Bs...in the '70s. They were noisy planes, for sure, but quieter than, say, the IL86. I can't remember much about the interiors, only that my parents always had trouble keeping squirrely me in my seat when I was a kid.
When I went to college at Baylor in Waco, TX, there was a 707 that did touch and gos from a repair facility based in Waco. The plane flew low over the city, so low I could see the control surfaces from underneath. I loved the drone of those old turbofans - truly a unique sound no other aircraft ever made.