The apartement is perfectly located. You can walk nearly to all the main places, 15 minutes to Bastille, 15 minutes to Rue Rivoli where you have all the shops and quartier Marais is very close too. Around the area are a lot of cute shops/restaurants and boulangeries and apotheques, so you really have everything you need around. As well it feels very safe in the evening. Cedric is a nice host and replies very fast. At the end he was really engaged to help us with everything and made our stay comfortable. Check-In and Check-Out is very simple.
The apartement is very new and beautiful furnished, , very modern kitchen :) even the bedsofa is comfortable. If you are used having a lot of space and think about going in a group (not your family or close friends) I would not recommend to go with more than 5 people, just because of the space.