Harry's apartment was absolutely perfect for our needs! We were in Vienna for just over a week visiting our son who was studying abroad. The apartment is huge - probably more than three of us needed! Three very big bedrooms with lots of sleeping options. Beds were extremely comfortable. The large dining room was great for all of us to gather around and the kitchen was equipped enough for a group who was exclusively eating out or carrying in. There was one huge bathroom with tub, shower, two sinks and washer/dryer attached to the main bedroom and two half baths - one with a shower and sink and one with a toilet and sink. The half bath shower is one where you have to hold the nozzle so we all used the main shower which worked out fine. Being at ground level, we were pleasantly surprised at how quiet the neighborhood was. No real street noise to speak of. The best part for us was the private, outdoor space. A large table and lots of chairs and even two loungers made for great hang out space during an unseasonably warm March. Wifi also worked well which was especially important to our teen.
The location of this apartment is top notch. When our studying abroad son saw it he was very envious! It is a couple of blocks from Belvedere palace and gardens - beautiful - and a couple of blocks from the entrance to the U-Bahn that gets you to the heart of downtown in a couple of stops. There are two grocery stores (Billa and Spar) within two blocks of the apartment which was great and a coffee/pastry shop as well. Not knowing Vienna at all before we came, we feel we got very lucky with this location.
The only hitch was that the code we were given to get the key from the lockbox was incorrect, but Harry answered his phone immediately and we got the right one and were able to get in pretty quickly. We also would recommend that if you have a larger group that might be splitting up at times to do different things, you ask for a second key. The door to the apartment locks with a key from the inside so you need the key to get out. This was an issue for us at one point.
We would highly recommend this apartment to anyone traveling to Vienna.