My first car was a 1997 Jetta 2.0 5spd with 221,000 miles on it. Ran perfectly every day in any weather, never gave me a single issue. My friend even had a mk2 Jetta with over 400,000 miles on the stock motor. If you find a decent one, they are perfectly reliable. And they're dirt cheap, and so are the parts for them.
my dad had one, my stepsister has one, two of my friends have them.. they all hate/hated them. and fixing them generally costs more than other companies because you (generally) have to get parts from overseas, and some mechanics even refuse to work on them. i have friends that have mechanics in the family and even they say to stay away from VW.
and relating to what tony said, get anything owned by an old person. usually better condition than something owned by a younger person.