Renting Alex's place was a no brainer for us.
The location is perfect, and the price is amazing!
Sure, it is shared washrooms, but they are very clean.. and multiple showers and toilets ect. So there was never any issues.
The only thing I would say was difficult for us was the description of how to find the unit, you can not access it directly from the street, it is in another shop area, which we found confusing.
Other than that, I would definately recommend to anyone visiting Prague!