We had an absolutely lovely time in Vienna and this apartment had everything we needed and more for such good value for money.
Hannes was a lovely host. He allowed us to change the booking name, waited for us when our train was delayed and showed us around his apartment, giving us lots of top tips on what to do and where to eat in Vienna. His communication was top notch and he left a little information guide, personal to our stay, which held everything we needed. If you want to feel welcomed then Hannes will certainly do so.
As for the apartment itself, there are two double beds (one sofa bed and one bunk bed above the bathroom) and a kitchen with hobs, a sink, kettle and lots of kitchen utensils. There is a dining table inside for 2 people and outside there is a table and 4 chairs. It is structured as a series of apartments looking inwards so you can sit outside on the terrace in the evening with a glass of wine. Hannes provides all the things you need and more. We had access to his bikes to cycle along the Danube cycle path and his guide books for Vienna which we used to do walking tours of Vienna. We even got a fan which was a huge change to the hotels we'd been staying in the previous weeks when there was no air con despite the heatwave!
The apartment is located just round the corner from Karmelitermarkt which is a market with lots of cafes. We went for breakfast here. Then it's about a 15 minute walk over the river and into town to get to the centre at Stephensplatz. There is a SPAR nearby (I think on HollandstraBe) which is good for getting groceries. I would recommend using the Rick Steves guidebook to do a walking tour of Vienna then use the bikes to cycle round the old city walls and then along the Danube cycle path. If you want a good view of the city and a smashing cocktail then go up to the top floor bar of the Sofitel hotel. The cocktails are around 15 Euros but are very good quality and you get an outstanding view that you'd pay to get to the top of the cathedral in town.
Overall we had a lovely stay and can't thank Hannes enough for his hospitality.