Manfred was a good host. Since we arrived early in Vienna and an early check-in was not able, Manfred was kind enough to accomodate the drop off of our 3 big luggages.
Our only concern during the stay is that the toilet room is separate from the shower room. The toilet room has no trash can or sink with water for you to clean up after. I hope this can be further improved for future guests. :-)
Overall, the price for the flat and location is great.