I stayed at Yankel's apartment for 3 nights and had a great experience. The location is excellent - just a few blocks from Rue Monterguille which is one of my favorite places in Paris as it has tons of bars, cafes, restaurants, and a vivid nightlife. The apartment is beautifully decorated and very well kept. It's in the top floor (note no elevator) and has nice skylights. The key to the apartment is kept at a lockbox which means the arrival is very convenient and coordination a non-issue. I highly recommend.