This was done 2 weeks ago. It was an early morning at Terminal 3 waiting for my flight to board. Not so much people around but I like the peace and quiet.
Terminal 3 was much more spacious because of its hangar style airport. Later on, I didn't realize I had to use the same ticket again on return so I was pretty embarrassed showing the check-in lady at the counter my flight ticket full of scribbles. Oops..