Although we only stayed there for one night (3 persons) we had a very comfortable stay. The appartment is close to the city center and well connected to the other parts of the city. It's also very clean and on the first floor which meant it was easier to carry our luggage. Even if it's not very big, for us it wasn't a problem at all. Ray is very friendly and welcoming and perfectly on time (he arrived even earlier). Appartments in Vienna are generally quite expensive so I guess the price is pretty good although I'm no specialist.