I live at 53N in the mountains. Planted grape vines 24" out on the SW wall of my house in 2001. The trellis is 14' high and 40' long. I prune to keep it that way. I see 5-7C cooling efeect on hot summer afternoons in my now-shaded kitchen. Best ever crop was 65lbs/vine in 2013. I get leaves for dolmades. I use the birds for insect control.
Adult birds put their fledglings in there while they forage. While this keeps the young birds invisible from the outside, I get to watch everything from the kitchen as the birds are less that 24" from the windows.
After several inspections of the prunings, I usually start 70-100 cuttings which I sell in the Community Market. Altogether, maybe 4-5 days work per year. Seems practical to me.