We really enjoyed how spacious the apartment was (definitely hard to find in Paris). We also liked that there were many train stations nearby which covered a lot of the train lines in Paris. This made getting around very easy. Also a plus that there was a lift (we had quite a few bags!).
However, as previous posts have mentioned, the shower mould is quite unpleasant. Also, there must be something wrong with the drainage system. The smell on arrival coming from the bathroom was horrible and took days to get rid of, and the drains in the sink would take a very long time to completely drain.
Overall, we were comfortable, but wish it was cleaner. And definitely can't go past the size of the place as an overwhelming positive!