We've spent 3 nights at Claudia's place. It is really well located near Gare d'Austerlitz. The placed matched the pictures so we knew what to expect. The flat is a little tight, so if you are a bigger person you might a little bit. Getting was not too easy, as the instructions are somewhat confusing and the door is hard to open. The place was clean, but there was a strong smell of cats (as others have mentioned as well). Kitchen is well equipped and you have everything you need. It's also very quiet so you'll have relaxing nights. So overall we had a pleasant stay.