I really despise the trunk mount I bought and would not recommend them to anyone that has a choice. It's one of the best ones(brands) available and there is nothing wrong with it's design, but after using it I just wish I had something else. It's a pain to put on and take off. You can't get your trunk open without undoing all those stupid straps. The straps vibrate something fierce when your driving down the road. If you have plastic bumpers/bumper-covers on your car, the rack will flex the plastic and possibly cause the paint to crack. Mine is a 3 bike rack but there's no way I would trust it with 3 bikes on it. Two bikes is pushing it, IMHO.

If you DO have a receiver on the Jetta I'd say go with one that mounts in that. It will be easier to install/uninstall. Should be easy to load bikes on. Won't scratch/crack your car paint. The roof rack is another good option but maybe not quite as easy to take on/off as the hitch mount.

There are a lot of different vertical racks on the market if you look around. Don't think you will find them much cheaper than the one you found, but there are other choices. Here are some at Colorado Cyclist