I’ve spent a whole month at this hotel and I can highly recommend it.
The hotel „lobby“ is really cool and you have the possibility to hang out there. The rooms are very simple — but kinda spacious for Paris (I‘ve seen three different rooms). The staff was super friendly. Especially Jaczek was a big help. But the best aspect is the location: The 6th Arrondissement is so beautiful and the hotel is in a very vivid neighborhood. It can get a bit loud (but it didn’t bother me because I love the sound of Parisian summer nights) — so if you are sensitive and have a light sleep, you should ask for a room overlooking the courtyard. But again: the location ist just perfect. Rue de Seine is full of art galleries and Rue de Buci has nice restaurants and cafés. This makes it also perfect for traveling alone because you never feel alone or bored because there is so much to discover.
Plus: You are close to the 5th and 7th Arrondissements, which are also lovely — and: you just have to walk ~10 minutes to one of the many bridges to cross the Seine in order to arrive on the right bank. Thus the Louvre and Notre Dame are not far away.
Metro and busses are also very near if you don’t want to walk everywhere.
To cut a long story short:
I will definitely come back. Merci! :)