Pros:
Wonderful location! Lively without being too loud, lots of shops and restaurants nearby. The space itself was very stylish and spacious for two people.
Cons:
Four flights of stairs and unfortunately no elevator, which only matters if you're bringing a lot of luggage like we did. The other unfortunate occurrence was that we arrived on the hottest day on record for Paris (109 degrees Fahrenheit!) and there was no air conditioning. Fortunately it cooled down thereafter.