Has anyone here bought one of these? Looks like it'd be pretty steady.
Have you considered the Saris Bones (http://www.saris.com/). We hook ours up to a 206 and it's quite happy with three bikes. Should really have a lighting board to go with it, though.
As a general comment, I've had no problem with stability wih any of these types of carriers, hung carefully on the back of the car and driving sensibly. What I have had a problem with is the straps slipping through the crocodile clip style things after a few months use. The cure I found was to buy a couple of small screw down clamps from the local DIY chain and fix them on the straps.