Nicolas' apt is cozy, clean and warm. The main room with the bed is flooded by the daylight so it won't be necessary to have the lights on in daytime.
The city centre is easily linked by the tram lines 2 and 5, at 150 meters by the apt.
Nicolas has allowed us to checkin before the scheduled time and to leave the luggages after the checkout, so that we could have a little more of time to visit the centre.
Highly recommended, surely I will choose him again for a second visit in Wien!