If you want to stay together with friends for a few nights, go for it. If it will be longer vacation I would probably suggest something different.
The description and photos are slightly embellishing the actual status of the appartment (tinier than it looks like, you can see that the equipment is quite in use e.g. creaky door). There is also no info about the noises from the elevator or from people walking at stairs (one room is next to the elevator and the noises are really loud). Be also aware, that the water is smelly (some disinfection I guess). Breakfast was the cheapest bought muffin (which was not written in the description at the moment of booking, now it is edited).
Overall it is ok, but it is better to be aware of that.