This room was in a great location and conveniently located for getting to all the main attractions via the Metro/RER/or even on foot. I live in NYC so I'm used to walking everywhere and I only took the Metro twice during my 3 days in Paris. St. Germain is also a beautiful area for simply wandering around and there are many great restaurants and cafe's in the area, and the Seine is just a 5 minute walk away.
Since the room has a single bed and is on the smaller side it was perfect for my solo trip. There's a small kitchenette area if you need to do any cooking, fast and stable wifi, and plenty of closet space if you were staying longer and wanted to really settle in. The large windows open up the space and let plenty of light in.
If you're looking for an affordable place in a great central location, I highly recommend this room.