I've worked on my own remotely / out of an office environment for years, and definitely miss the banter and the camaraderie, but would never trade it back for the typical 9-to-5 I use to have.

I find it insanely easier to get things done when I'm in a closed, quiet room with no co-workers around to bother me. At the office, I'd often be bombarded by drop-ins, people chatting or other distractions. A focused 4 hour day working on my own is equivalent in productivity I've found to a full working around other people who aren't completely involved in their work.

Call me a robot, but I love to get my work done alone and then shift into social mode. I'm not good at doing both at once.