We had a very good time in Herbert's flat. Although we didn't met him, he asked for news from us during our trip, and remained available for any question we had.
His flat is very well placed nearby Donaukanal, which is a wonderful place to walk along. It is also close from two subway stations and all kinds of shops.
Inside we found a clean place with everything we mind need.
A place where we could go back with pleasure for another trip in Vienna.