I'm assuming you were referring to my track, as mega's quote was about mine. If not, sorry.
Either way though, I general do better mixes when I mix as I'm going along putting the track together. It tends to make for a better feel too because I'm playing my parts more in context to what I'm hearing. Not that I don't work in other ways too, this just seems more intuitive and an organic approach for me. As far as setting levels... that's something I continuously try to manage and improve upon. My goal is usually to get something that's not overly hot or harsh but still at relatively modern levels. I fail in that regards sometimes, but I do cut myself some slack as I usually tend to play, mix and post these tracks within 1 sitting, 2 at most in the same day.