While I sometimes put a lot of details into a model I don't really get overly "obsessive" about it (not trying to pick on Bill). I try to be as neat and clean as I can but don't really get too hung up on the really intricate details. I enjoy adding details because they add to the realism of the look of the model, and I find it fun along the way. I do use internet reference pictures in order to try to get the details that I do add in the right places.
I usually build at a rolltop desk down in my basement. My built and unbuilt models are down there. It gets kind of chilly down there in the winter, so I turn on an electric heater, but will sometimes build at my dining room table upstairs where it's warmer.