First of all, location is great both for tourists and business people ; you can make your many touristical tours on foot easily and if you need the take the metro, it is just in 1 minute distance from the house and the station is main central one that you can take most of the directions easily
Even the building is not very new ( as like the majority of the buildings in Paris) flat was renovated in a good and clean way.
Kitchen equipments are all enough and there are supermarkets very near to the house.
The only thing you need to take into consideration is the noise outside but when you close teh window you do not hear anything and it is not issue to break your sleep. Naiso is coming from the many restaurants outside.
When we were there Paris was not so hot so we do not need to keep the window open but there is a fan for any case too.
Good internet connection is a plus
House owner was easy to reach by phone or sms and they are very welcoming. Thanks for everything