+ The location is unbeatable, just along from the Sacher, the Opera & the Albertina. Most things (inc. great restaurants) are in easy walking distance.
+ It's a big apartment, the rooms are spacious with good storage.
+ It was always warm, great to come back to on a cold day.
+ Wifi was fast.
- There was an issue on our arrival and we had to stand outside the building in the cold for an hour with lots of luggage before we were let in.
- Many things went wrong. The doorbell didn't work, so we couldn't let anyone in. The shower flooded the apartment, which was a pain to deal with. One pair of taps leaked, one sink didn't drain. One morning the electricity was off for hours.
- It needs renovation - walls and floors were very scuffed & cracked in places; it felt unloved.
- There was noise (thin walls & ceilings) which disturbed sleep.
Andreas was always very polite & responsive. He even offered us a discount to make up for the issues, so I think they're not usual for his company.