I use one!
I use mine during the spring and summer months. Ours has the straight lines, as opposed to the v-formatted style, which I find useless. Although king size sheets can be a challenge, I love mine, and like the fact that it does not take up half of our bckyard. In the afternoon, it goes into 1/2 shade, which I find great for the colored stuff. I usually 3/4 dry everything, and then put them in for a spin in the dryer on no heat. Then you get the line dried smell, and the softness from the dryer.
Hugs,
David