Karl is great! Very professional. Check in and check out were a breeze. The flat has a cool modern vibe. All of the amenities you would need. The AC was a life saver since it was 90+F when were in Paris! Little things could be improved... better pillows, wash cloths in the baths, a thorough cleaning. The flat wasn't dirty, but could have been "polished up" a bit. Also, there is only one toilet, probably a function of ancient Parisian plumbing. Overall, a great stay with small suggestions to make it even better. Thank you Karl!