I'm uploading once a week.
My goal is eventually working my way up to twice a week if I can really simplify my workflow. A page takes me toughly three days with the style I'm using (of course not literally working full-time every one of those days, but a fairly decent sit-down session at least- plus I need the break between inking and colouring). I know this, so I started out with an existing buffer for weeks when I can't find the time.
Currently, my philosophy is to take it slow. I'd like to keep a regular update schedule and avoid burn-out or hiatus periods down the line for as long as possible.