Unfortunately not a great experience.
The bathroom is awful. There is not a real door, meaning if you’re going to the bathroom you have to tell everyone so that they don’t walk by when you’re on the toilet. They can’t even use the sinks since they are right next to the toilet, separated only by a half transparent pane of glass.
There is only key. When traveling with others, that means people cannot return at different times and enter a code to get in — someone always has to be available. And there is no way to unlock the deadbolt from the inside. I found this out the hard way when the other two people I had been staying with got up earlier and locked the door behind them, and then I was unable to leave the apartment. This seems like a huge fire hazard for someone to get stuck in the apartment without a way out (and no windows to the outside).
The apartment also gets pretty hot in the summer and the AC in the living room is far too loud to be on while sleeping.
Overall, I’d say if you there are more than 2 people in your party, avoid this place. 2 would be acceptable for a short stay, but it’s still kind of annoying due to the issues above.