I highly recommend staying at Barbara & Gerald's place if you're traveling to Vienna. Their apartment is beautiful and very clean with everything you might need, including a hair dryer, towels, shampoo, even spaghetti and sauce if you're hungry. It also has a lovely balcony. It's in a great location walking distance from Schonbrunn Palace and to the metro into the center of town. Check in and check out was easy. Gerald showed us the apartment and was super nice and helpful. Definitely the place to stay if you're going to Vienna!