We booked Apartment AP9. It's a ground floor Apartment and really spacious with great fixtures and fittings. Hob, Oven, Dishwasher, Fridge/Freezer... the quality you'd buy yourself at home. Very comfortable with en suite shower, wc and basin to one of the bedrooms and a family bathroom off the hall way with walk in shower and bath... exceeded expecations and we loved it. The second bedroom was huge too and made a great place to say for myself, my wife and two teenage boys. We spoke to Christian a few times and met Stephanie once and they proved to be excellent hosts, very helpful and had great information about Vienna to help you with if you needed help. There's a small supermarket around the corner that also made shopping really easy and convenient and good value for money. Vienna itself was all we wished for and more. The apartment was about 25 minutes tram ride into the centre which was very convenient and easy to do. So much to see and do and we purchased the Vienna Passes which proved to be very useful and good value for money, although on some of the lines they're time keeping wasn't all that predictable... most probably because they were running fewer buses than they would normally. All in all then, great accommodation, location and Vienna is definitely worth a visit. Have a great time!