We stayed for 3-4 nights in this room.

The Pros: the location is awesome, in between the Senate and Sainte-Sulpice Cathedral (magnificent), and easy access to Odeon and a bunch of metro stops. The water pressure in the shower is also great, and internet was good.

The Cons: 1) there was a very heavy mildew smell that greeted us when we entered. We were forced to wash the shower curtain, which helped a fair bit, but this should never have been something we had to do. Yes, it is a 400 year old building - but there are lots of those in Paris, this smell should not have been there. 2) the bed is not good if you have injured joints, or body pains. Very unrestful sleep.

Conclusion: If you aren't going to spend much time in the apartment, this is a great spot to headquarter yourself. Really good value for money in this respect - good for backpackers, etc.