I used to live in a 3rd floor apartment, though it was only 2.5 flights on the side of the building I used.. i loved it, though the stairs were occasionally tiresome. It was nice and quiet, and I felt like I was living in the treetops, as there were lots of oak trees surrounding the building. When I had a downstairs neighbor, it was super cheap to heat. I did get some built in exercise, which I needed. I did not carry lots at a time, as a rule. I kept my grocery runs small, and only washed one load of laundry a day, at my parent's house as I ate dinner there, and went for a bike ride.