Can I simply say that everything was perfect? ;-)

The apartment is spacious and newly decorated. There are two, really big rooms with lots of light and nicely furnished. Kitchen is open to the living room and fully equipped (a kettle, a coffee machine that makes great coffee, a cooker, an oven, a dish-washer...). A small but very nice bathroom with a bathtub. The flat is excellently equipped. There is really everything you might need: from salt and paper to cleaners, from tissues to an iron and an ironing-board...

The location is also great - a VERY short walk to the underground station (5 minutes and you're in the centre of Vienna!), many shops and a market nearby. Parking is free on the street and even if it might take a while to find a parking spot - I have always managed to put a car relatively nearby.

There is no washing machine in the flat - but there is one in the basement and it works perfectly. It might take a day or two to get hold of the lady, who is responsible for the washing machine (so I would not wait with it until the last minute ;-)) - but it has always worked for me at the end. Alex left a detailed manual how to use the washing machine and the dryer.
In fact, he left numerous VERY useful information in the flat and I honestly had no problems living there (and I stayed for almost two months!)

Alex is very helpful and always happy to land a hand. He was helping me with the luggage and I could always contact him in case anything happened. But luckily I really did not have to bother him often ;-)

The free Internet limit is low - but you may always get extra transfer for a fee. Worked very well (with Alex's help - cause the Internet provided did not like my credit card ;-) )

All in all - it has been an excellent stay and I really enjoyed living in Alex's flat. Highly recommendable!
Thanks Alex!