I like them. £18/pair, delivered. They wipe evenly across the entire blade length, don't judder, make less wind noise on the motorway and don't lift at speed. The fork/hook on the drivers side wiper arm sits astride the spine of the aero wiper a treat, holding the blade in place.
If you're running your Multi on a shoestring, they're a needless extravagance. I drive a cheap car and spend some of what I save in maintaining well. You pays your money, you takes your choice.