I used clothesline extensively until the late 70's and loved them
most of the time. IMO, having good breeze is more important than sunlight to the drying process. In cold weather they are the pits, and two weeks of rain will make you run around naked.
Other than that, the smell of fresh air dried clothes is wonderful. Yes, the clothing is wrinkled, but not like something that sat in the dryer and wrinkled as it cooled. You can get pant stretchers to give your denims and chinos a fresh pressed look.
I'll be setting up T-posts at the farm as soon as I get some help to lift them into place. Someone recently offered me another set that I might want to erect here at the house.