A long unobstructed washing line over a path down a lawn, that would be perfection but many cannot achieve that, including me. A large unobstructed whirly is what I have, the largest one, brabantia 60m liftomatic in a 50mm concreted tube. I wanted stability and space for everything in one fill with gaps between things. It works perfectly and is something I managed to install by myself, using all sorts of bracing and a vertical spirit level
My neighbour last house had a brabania wall mounted airer that pulled out from the wall, it did not hold much
re garden rescue, they do use a lot of wood in contact with soil, give that wood 7-8 years and there would be signs of rot. They tend to do nice jobs with patio areas but rolled gravel, not so good. I expect it is down to available money for materials