We stayed 4 nights in March and the flat was very nice and convenient. Here is what we can say from our experience:

* The location is perfect. All the inner city is at walking distance and there are many shops very close. Also, the transportation (subway, tramway, buses) are less than 300m from the flat.
* The kitchen is well equipped (although some items were missing like sponges / garbage bags).
* The wifi works very well, as well as the television
* The bed is comfortable
* The bathroom is correct (although the hot water supply is very small - we had less than 10 min of hot water per day in the shower)
* The flat is very bright thanks to the big windows.
* There is no heating system in the flat except for a small oil bath radiator which is clearly not enough to get the whole flat warm.
* The flat was well cleaned when we entered.