Just come after you get rich
Everybody told me how Zourich was expensive, but I was still surprised at just how expensive it was. It's a beautiful city in a beautiful country, but unless you have a lot of money to spend I'd go to Austria or France instead.
Insider Tip:You can borrow a bike for free next to the main train station, which is really nice. The National Museum (also near the station) was one of the best I've visited so far, and surprisingly cheap (about 10€)