We had a great time in our trip to paris. The best of this apartment is with no doubt, its location. Its in the middle of everything, if you like walking you barely will need to use public transport. We went everywhere on feet. Its also located in a crowded place with lotd of restaurants and people, but the walls and the windows were strong enough so that we didnt hear a noise inside, whis is very great!! Also we appreciate a lot that karl was very flexible with check in and check out time.
The only reason that we do not give 5 stars is because it could be cleanear than it was, there was dust under the bed, the floor was not very clean and some kitchen tools were dirty also. On the other hand the bathroom was very clean and the bed was comfortable.
To sum up, we would recomen karls apartment to any person who want to have a nice time in paris, and we would undouvtedly repeat if we go back.
Thanks for everythin!!