We loved our stay at Guillaume and we highly recommend his housing. The apartment was very clean, had everything we needed (including a pretty view to Sacre Coeur and the Eiffel Tower) and was close to the subway which made the city center easily accessible. Guillaume and his girlfriend are very welcoming and pleasant people, they helped us with local tips, recommended tourist attractions and let us store our bags at the apartment a bit earlier than the check-in. We would definitely stay at their place again.