As soon as we booked the apartment, Martin was a very good host. He got our questions answered straight away, and directions to the flat were absolutely impeccable, leading us right to the door. The location was good. It was quite far from the centre of town, but fine if you don't mind a half hour walk or 5 minute metro ride. It is also very close to Schonbrunn, which is highly worth a visit.
The apartment itself is really well furnished, well equipped, and comfortable. The shower is great, but be careful to put a towel down so as to not soak the rest of the bathroom! The oven is great, as is the rest of the kitchen. The bed is very comfortable. The only small issue with regards to sleeping was that it got very warm in the flat, even with the fan on full power and both windows open. One of us slept fine but the other was a little uncomfotable.
Overall, we really enjoyed our time in Vienna, and both the flat and Martin as a host were very good. Thanks for letting us stay!