It took a lot of getting used to: constant chatter, loud talkers, ice chewers, mouth noises, farting, personal phone calls that were too personal... But I acclimated.
I continued to work in a 9'x9'x (x5' high) cube for 25+ years and the last company I worked for switched to an open floorplan for my last 3 years there.
IT WAS HELL. At least in my small cube I had some sense of privacy, but now everyone could see my screen, or see me having to deal with various biological discomforts, it just sucked. I'm glad I became a contractor 5 years ago because it is great to be out of that mess. Hopefully I'll never have to return.