Pros: Ideal location in Latin Quarter, nice view, room is as pictured, fast response when we had concerns, clean rooms, close to public transportation, relatively quiet.
Cons: Difficult when you check-in and check-out: narrow hallway, many many stairs, small elevator (ie 1 person and a suitcase at a time), primary door is difficult to unlock (fire trap), door to room uses old school metal key which is also hard to use. If you are not very mobile or have very heavy suitcases, it will be a nightmare when you check in and check out. But once you're in, everything is great. The shower is also pretty small. I am 5'4, 140 lbs and it felt cramped.
Conclusion: If you are fit, have minimal or light luggage, and don't mind stairs, then this place is a gem and should not be missed. If you have trouble with going up and down stairs (you will need to climb at least 20 steps before reaching the small elevator, and then another 10 steps to get to the room - and the same when you are leaving) you will not like this room.