My stay at Le Petit Chateau was of mixed feelings. Location wise it is fairly close to bus, tram and metro (all within 10-12min of walking) which is convenient for travelling around Paris. The hotel itself is of lesser conditions, which is understandable since it's 2 stars.
I was allocated a room on the second floor which had no toilet, only a shower and sink (bathroom was down the hall and shared). I was not notified of this prior. The man in the reception was extremely kind and tried his best to help me even with limited English, and I was given water for free. Checking in later than 10PM was also not a problem which I was grateful for.
The room had a slightly hard bed and the walls are extremely thin. I could hear the other people on the floor coming in during the night, and people above me moving about, thus having difficulties falling asleep. I would recommend bringing earplugs. The wifi worked very well.
It is a cute place, and an alright budget choice for a few nights if you only intend to sleep there.