The apartment is in a good location and is nicely situated overlooking a park. There are plenty of places to eat and drink nearby and it's only a 15-20 minute walk to Museum Island. There is a Number 12 tram stop on the doorstep and other tram stops close by. There is a really good REWE supermarket just 3 minutes walk away.
The apartment itself has lots of potential, it could actually be something special, but it is let down by the boring decor and quality of the furnishings, which seem to be mainly from Ikea (or a second-hand shop!) and many of which are pretty old now. For example, the vase of fake flowers on the dining table covered up what appeared to be a burn-mark !! The settee was not very comfortable and you would not want to spend an evening sitting on it ! But this is Berlin, so why would you spend much time sitting in an apartment anyway ?!!
The bathroom was clean enough but was let down by not having a proper wall-mounted shower - i.e. you cannot take a standing shower, you have to sit in the bath and hold the shower-head above you. Also, the bath plug didn't work properly, so while you sit in the bath and try to fill it, the water constantly seeps away....
The kitchen is very bland and not terribly well equipped. The best example is found in the fridge, where the single ice-tray in the freezer compartment has been cut in half and only allows for a few ice-cubes. Once again though, this is Berlin so why would you be eating or drinking in the apartment when there are so many good places to go and do this?
The double bed is not the most comfortable we've ever slept in but it's ok and passable. Be warned though, there are only two pillows provided and these are very flimsy. If you normally sleep with a firm pillow - or even two pillows - then you'll have to go out and buy these for yourself. That's exactly what my partner had to do, but luckily we had just enough spare space to take the pillow back to the UK with us.....
To summarise, the photos make the place look better than it actually is, so if you're looking for a quality apartment then this is not the place for you. However, if you're on a more modest budget and want a reasonably priced but fairly basic and convenient place to stay then we'd recommend it.