Clement's apartment "Heloise" was lovely and just what we expected after reading all the reviews. It is quite tastefully decorated with an old world feel, with high ceilings and two large wndows that make it feel much larger than it is. We had plenty of space for our suitcases and to move around at the end of the day.
The location was great if you like being in the midst of "what's happening" and tourists. If you stretch out the window you can actually see one of the towers of Notre Dame, literally a minute from the Seine and from a metro station, Saint Michel.
It had great amenities (especially ar conditioning which is a must during the hot days of July). There is a combo washer/dryer. Please keep in mind though that the dryer does not work like expected. We still had to hang our items to dry, so if you're in need pehaps arrange this for an overnight dry.
Also, if you're used to facecloths bring some along. Most times these aren't provided in many European countries.
Other reviewers have mentioned the noisy bar down below. We could hear this as well but for us it only added to the vibrancy of the area.
My husband and I had a great stay in this apartment - a welcoming place after each day of wandering.