Very good hotel. When I arrived in the early morning my room was (of course) not yet ready, but I was offered a free espresso by the very friendly receptionist. They were very helpful and flexible, especially since I had to shorten my stay with one night compared to what I originally booked. Even though the cancellation period was finished I did not have to pay the extra night.
The room I had (#50) was very clean, nicely decorated, more than large enough and the bed was very comfortable.
Breakfast is served in the cosy basement and although you have to pay extra if you want any egg dishes, the standard breakfast is very good. Baguette and sweet pastries are offered as well as different cheeses, ham, jam, yoghurt, fresh fruits... and freshly squeezed orange juice. The green tea is of very good quality. All of this is served by a very friendly lady. The perfect way to start the day.
For my next trip to paris I will definitely go back to Le Saint Grégoire.