Mariano is a very thorough and approachable host. Nothing that I needed was a problem for him - e.g. I need to do a laundry after 2 weeks of travelling or hints on what to do, where to go (thanks for the hint on the Naschmarkt!) etc.
The accommodation itself was just as described and suited my needs (although I simply had no time to make the use out of the balcony, it was indeed a nice touch!). All clean, simply everything was alright.
The neighbourhood, where the place is located, is very well connected with other means of transport (but that's also because the Viennese transport network is really good in my opinion).
And also there's a little basket of snacks Mariano provides you with- some people might have referred it to as breakfast but if you're a person who needs proper BIG breakfast, there are some nice places around the area where you can it too.
I simply do recommend and would stay again.