Perfect place to be near the iffel tower, between 5 to 10 min max walking. The metro is also very close to there (5 to 10 min max) so you will not have problems moving around the city.
The sofa bed was super comfortable, something had that you just didn't want to get up because it was surprisingly very very comfortable.
It is perfect for a couple or if you travel alone, it has everything you need to stay there. All very well furnished and equipped.
Being close to the tower will help you not need to rent a car or go by taxi to get to the place and literally if you want to be in the tower until midnight, you can go back to eat at a restaurant in the surroundings and still get there to the department walking.