We had a very good stay at Hotel Port Royal. The location is perfect, within walking distance of some of the most charming and lively areas in Paris, and with easy access to public transport. The room is perfectly clean, quite small, but not by Paris standards, and with a nice view. The shared bathroom and shower were not a problem: they were almost always free, and perfectly clean. Only the price of the token for the shower is perhaps a bit high (2.50 euros). The staff is friendly and very helpful. Overall, the room is a great basis for exploring Paris.