We had a great weekend here. The location is GREAT - so close to restaurants, bars, and all the sights. It's also close to good transport links (very easy to get to coming from the Eurostar as we did). The apartment is definitely small but very comfortable. Perfect for a weekend when you're in town to explore.
Finding it was really easy. We were coming in late and Sadek was super helpful with directions to get into the apartment and find the keys.
Would definitely recommend for your next trip to Paris!