Definitely depends on the group, but I think mostly just whatever building you happen to be in. The building I'm in is newly remodeled. Meaning entirely open-office.

In my opinion, my building/group/whatever does it wrong by jamming so many bodies in the same room together. There's 26 desks here in a room that looks as though it could comfortable fit about half that many. I've since adopted big sound-proof headphones and a wall of monitors that eliminate most distractions. But the biggest annoyance to me is that there's constantly a line for the bathrooms. Too many people for what the building was originally designed for, I think. Assuming we better limited the room capacity, I could likely tolerate this just fine.