To quote this month's PC, "This is the only mover on the market that tackles twin axles using 4 rollers. This means that driven wheels never lose ground contact. It also means that users can turn their twin axle in a tight arc, using all 4 wheels, so there is no scrubbingof the tyres on the ground. You take the caravan backwards and left, then forwards and right, repeatedly, to turn the caravan 360 degrees. By holding down 2 of the buttons on the hand set, an electric preset will do this automatically until the van is in the position you require."
The demo I saw at Earls Court gave a pretty much on the spot turn. The lightness (62Kg) compared to Powrtouch (175Kg) was quite compelling. I had been prepared to go with the latter as they seem to have a great reputation, but the demo sold it to me. The hitch type movers have 2 problems from what I've seen, inclines and rough ground.