Kass' place was amazing... it was extremely clean and cozy, in the most perfect (very trendy) location, close to great restaurants, amazing shopping, bars and public transportation. I was able to easily walk to everywhere and it felt extremely safe at all times, even late at night. Kass was very friendly, helpful and responsive and was very flexible about my check-in and check-out times. I highly recommend his place and would definitely stay there again next time I'm in Paris!