See a lot of those hitch carriers. Only issues:
- DON'T FORGET IT'S THERE when backing up!!!
- Can't open your rear door, but as a consolation, you do have access to the rear window.
- Hope you're not also wanting to bring along a couple of bikes too! That'll be a no-go.
Unless one has either medical or height (read: being on the short side) issues, I'd prefer using the roof rack, which the photo shows having one. Albeit, you'll have to breakdown to smaller totes for the roof rack, rather than one giant one in the back.