I recently stayed here with my wife and four children & I was not completely satisfied.
The positive - Location - it is a great location. The louvre is literally around the corner (less than 5 minute walk). There are at least 3 good cafes within a 1 minute walk. There is a taxi stand across the street and a grocery store next door. So - location is amazing. Also - Sweet Inn are great at communicating (the best experience I have had with communication). They have an app and I suggest you download the app. The app has apartment info, plus digital key and a chat option. I used the app daily and it really helped.
The negative - This is not an elegant apartment. It is very very basic. If I had to compare it to an American hotel chain - it would be Motel 6. There are definite repairs needed i.e. the downstairs toilet leaks at the floor & one of the sinks upstairs leaks (the one on the left). The room was initially hard to find - take the elevator to the top floor, make a right, go through the single door, go down the hallway, go up the stairs and its the first door on the right. When I got there first, there were two young men in the room who worked for Sweet Inn. This was weird and unsettling. The elevator is a two person elevator (3 kids / no bags) and you have to go up one set of stairs no matter what. So - if you have an elderly or disabled person in your group - this will affect you.
**Did I want to leave and find another place as soon as I got there - hell yes. But, there goes $2K plus whatever I pay for the next place. I even hid our expensive things in various places throughout the apartment as I did not trust the safe after meeting the two young men in the apartment upon arrival.
**Would I stay here again - definitely not.
**Were Sweet Inn helpful and great communicators - yes.
**Did it do the job - yes.

Hope this helps….